Marcia wants to nominate Mike for "Father of the Year." But she wants to keep it a secret, which means she'll have to break family rules to get it done. If she's caught, Mike will punish her--which is exactly what happens.
Mike worries over a newspaper horoscope, which predicts that a strange woman will enter his life. That woman is a fussy perfume heiress, his firm's latest client who wants her perfume factory impossibly designed to her specifications.
Greg makes an "F" on a math test, and Mike and Carol discover it's because he has a crush on somebody named "Linda." They set out to find out who she is, completely unaware that "Linda" is actually his math teacher.
Cindy accidentally mixes in Marcia's diary with other books for a book drive. Marcia immediately freaks out, because she's worried that someone else will read it and learn about her secret crush on TV star Desi Arnaz Jr.
Mike believes that teaching the boys how to play baseball is more rigorous than helping Marcia earn her cooking merit badge. Carol believes the opposite is true. Therefore, the two decide to switch roles for the day to prove their point.
Jan gets a locket from a secret admirer. As the family try to determine who anonymously sent the locket, they're momentarily distracted when Jan loses the locket (after the clasp becomes loose and it falls off her).
The famous tale of Marcia's first house party, which almost doesn't happen after she is accused of scrawling an unflattering picture of her teacher in class. Marcia's brothers conspire to ruin the party, with the predictable result.
Marcia goes gaa-gaa over her first steady boyfriend, nerdy insect collector Harvey Klinger. Things progress so quickly they decide to start thinking about their future, leading Mike to subtly intervene.
The boys find a wallet with $1,100 in it and no identification. The boys want the money for themselves, the girls want the boys to split the money with them, but Mike turns to the police to help the owner find the wallet.
School bully Buddy Hinton makes fun of Cindy for her lisp and then gives Peter a black eye for trying to defend her. When Mike and Carol can't get Buddy's parents to listen to reason, Mike encourages Peter to defend himself and fight back.
Peter is going to miss a big camping trip after he breaks Carol's favorite vase. Each brother and sister confesses to keep him out of trouble. Mike and Carol figure out the truth and respond with an appeal to Peter's conscience to confess.
Peter, Jan and Cindy make the Glee Club but Bobby does not, so Carol buys him a drum set to make him feel better. Peter's football teammates make fun of him for being a singer, until NFL star Deacon Jones sets everyone straight.
Cindy is spooked after seeing a disappearing act at a magic show, and refuses to sleep in the dark. So Peter puts together a magic act of his own with Cindy as his assistant to help her overcome her fears.
The Bradys fight to save Woodland Park from closing to make way for a new building. But Mike's firm gets the project and he is in charge of the plans for the new building, and Mr. Phillips delivers the family an ultimatum.
The Bradys and Alice begin their trek to Grand Canyon. But a stop at a ghost town turns out to be a detour, after a demented prospector locks everyone in the jail, thinking they plan to steal his (non-existant) gold claim.
Marcia doesn't want to play Juliet in the school play because she lacks confidence and beauty, so the family tries to boost her self-esteem. But soon she lets the praise go to her head and becomes an unbearable diva.
Peter gets in trouble for eavesdropping on his brothers and sisters with a tape recorder and his parents force him to apologize. But Greg and Marcia decide that they are going to go one step further and teach him a lesson themselves.
Greg joins the high school football team and becomes a starter, but Carol doesn't want him to play because he might get injured. Meanwhile, Bobby annoys his family when he becomes a photographer and takes surprise pictures of them.
Marcia says she can get Davy Jones to sing at her school's junior prom because of a letter Jones sent her as president of the local fan club. The problem is that she can't get to him to ask, and the school has already made the announcement.
Jan needs glasses but doesn't want to wear them because of how they make her look--until she has an accident that destroys Mike's surprise anniversary gift to Carol, a framed portrait of the Brady kids.
Jan finds an old photo of her Aunt Jenny at her age and discovers that they look exactly alike. But when she discovers what she looks like now, her excitement changes to disappointment--until she pays the family a visit.
Bobby takes advantage of Greg after he wins a bet that Greg can't do twice as many chin-ups as Bobby. Meanwhile, Carol tries to figure out which woman at Mike's high school reunion is his old sweetheart, "Bobo."
Peter "Scoop" Brady gets a job for the school paper, and discovers that writing nice things about classmates has fringe benefits. So when he makes a "D" on his final exam, he tries a snow-job article about his teacher to improve his grade.
Alice's cousin Emma, a former master sergeant, takes Alice's place while she is away, and she subjects the Bradys to a demanding military-like routine that makes them feel like they've been drafted into the Army.
Cindy is jealous of her older sisters and doesn't want to treated like a kid anymore. Bobby tries to cheer up by pretending to be a "secret admirer." But what will Bobby do when Cindy sets up a date for them to meet?
Marcia's class nominates ugly duckling Molly Webber for Senior Banquet Night host as a joke. Marcia decides to give her a makeover so she can win. But what will Marcia do when she discovers at the last minute that she's Molly's competition?
Peter has a crush on Jan's new friend but every plan to impress her backfires. Inspired by "Cyrano de Bergerac", he launches a final plan to win her over with Greg's help but it also backfires when she falls for Greg instead.
The boys try to spook the girls in the middle of the night with a ghost, so they try to get revenge by giving them a taste of their own medicine. But after Alice criticizes them for being so scared, the kids collectively have a new target.
Greg and Marcia recruit their parents to participate in Family Frolics Night at school. Alice is upset with Sam when he passes a chance to be her date to the event to go to bowling practice, so the girls launch a plan to change his mind.
Jan feels that her siblings don't treat her with respect, almost like she is invisible, that she has to line up after all five of her siblings have finished using something first, or that she has no privacy to be able to do what she really wants to do. She makes a rash comment that she wished she was an only child. After thinking about it, she admits that she truly does wish it was true. She even doesn't want to attend the upcoming charity hoedown as a member of the family, where the eight were going to be a square for the square dancing. Her parents won't force her to go, and they also want Jan's brothers and sisters to treat her a little more kindly as she works through what they hope is just a phase. After that tactic ends up being a miserable failure, the other five kids decide to give Jan exactly what she wants: the feeling of being an only child. Meanwhile, Carol and Alice embark on a competition of the homemade strawberry preserves for the charity hoedown, each using a secret family recipe.
Mike is excited to read in Greg's class composition that he wants to become an architect, just like his good old dad. What Mike is unaware of is that Greg only wrote that because he didn't and doesn't know what he wants to be when he grows up. Greg doesn't have the heart to tell his father that he really doesn't want to be an architect, so he devises a plan that he hopes will make his father dissuade him from entering the profession. His plan doesn't have quite the reaction from Mike that Greg had hoped. The plan and the reaction are the result of both sides not wanting to hurt the feelings of the other. Meanwhile, Peter, Jan, Bobby and Cindy, spurred on by Greg's class assignment, have come up with their chosen professions as doctor, nurse, astronaut and model respectively. Peter decides to do a self diagnosis and doesn't like what he finds. And Bobby and Cindy reconsider based on what they can or cannot eat.
An incident between Peter, Greg and a Frisbee inside the house leads to an antique lamp in Mike's den being broken. Alice is aware of the boys breaking the lamp, which Greg and Peter try to repair without their parent's knowledge. As such, the boys ask Alice to keep their secret from their parents, which she vows to do. But when Carol discovers the lamp has been broken, Alice is caught between her vow to the boys and the fact that she has never lied to Carol. As such, Alice feels like she has no choice but to tell the truth to Carol. Subsequently, Carol asks Alice a seemingly innocent question about who used the record player, that person being Marcia, who apparently left the record player running all night. Both the boys and Marcia get punished for their deeds. Because of these incidents, the kids feel like Alice has betrayed them. All six decide to give her the cold shoulder. Feeling now unwanted and unloved by the kids, a heartbroken Alice, using the old excuse of a family situation, decides to take direct action by immediately quitting, not even saying goodbye to the kids. So when the kids find that Alice's friend Kay has taken her place, Kay who has a less emotional approach to being a live-in housekeeper than Alice did, the kids have to figure out how to get their beloved Alice back.
Jennifer Nichols, a student at Westdale High, is forthright in her pursuit of Greg, who quickly falls under her seductive charms. Jennifer and "Greggy", as she calls him, have a surfing date on the weekend. He is so preoccupied by thoughts of Jennifer that Greg forgets about a previous doubles golfing engagement that day with Mike and another father-son duo, leaving Mike to scramble for a last minute replacement. Mike's wannabe alternate for Greg isn't quite who he was expecting or hoping. After Mike and Carol meet Jennifer, they can tell that behind her sweet demeanor, she's after something from Greg. Meanwhile, Marcia is practicing hard for the upcoming head cheerleader tryout. Although Greg is chair of the selection committee, Marcia doesn't want to take for granted that she'll get chosen just because of her personal relationship to Greg. Although Greg may not be able to see it, what Jennifer wants is too to be chosen head cheerleader. Greg vows to Marcia that he will be fair and impartial in his judging, although Marcia doesn't believe Greg will be with his girlfriend also in the contest. Can Greg be fair and impartial, and will both his sister and his girlfriend respect his decision?
Peter is trying out for the part of George Washington, the lead, in the school's play on the American Revolution. Peter is dismayed that he instead gets the secondary but much more demanding role of the adversary, Benedict Arnold. Peter really wanted the heroic lead, and as such contemplates dropping out of the production. Carol is able to convince him that getting this role is indeed an honor, and that he has never quit anything before. But will he feel the same way when his friends start ribbing him for playing the part of a traitor? Meanwhile, Jan gets the position of set designer, as she has the best qualification of any student: her father, the architect.
Marcia is walking around in a daze following her visit to the dentist. It's because she's in love, namely with their regular dentist's new associate, Dr. Stanley Vogel. Marcia gets the idea that she could become Mrs. Dr. Vogel from Jan, who reads in one of her teen magazines that women who marry men ten to twelve years older are in more stable relationships. What she doesn't know is that he is already married with a child. Marcia's thoughts about Dr. Vogel make her lose sight of more appropriate males her own age that are interested in her. Complications ensue when a request Dr. Vogel makes for her to babysit is misinterpreted as a date. Meanwhile, Peter and Bobby are building a go-cart with Greg's help.
Bobby is losing all his friends. The reason?: in his new role as safety monitor at school, he has to snitch on his friends if they break the rules. He didn't even want the job, but since no one volunteered, the teacher chose him. As such, his parents convince him that he should be the best safety monitor that he can be. So he decides to report every single violation he sees, big or small, and even if it involves a family member. In that vein, Bobby self-appoints himself as safety monitor at home, writing a report to his parents on every rule broken around the house, even if the offender has a good reason for breaking the rule. This act extends the bad feelings toward Bobby from his siblings as well. Bobby learns the hard way that there are good reasons for the breaking the rules. Meanwhile, Mike buys a small run down sailboat that he figures just needs some tender love care to make seaworthy.
After doing Bobby a favor of driving him to the pet store to buy a frog for the frog jumping contest which has a $25 first prize, Greg is rewarded for his efforts by getting grounded - no use of the car for one week - as Bobby tells his parents of Greg almost getting into a car accident purely out of his own carelessness. Greg is annoyed enough about Bobby blabbing on him and being grounded in and of itself, but he is more depressed about the repercussions on his dating life, as there is no way he can now pick up the concert tickets for his already promised date with Rachel. Greg thinks he's found a loophole in the grounding as he drives a friend's car to pick up the tickets instead. Caught in this action, Greg is further grounded, which means that he will now miss his date with Rachel altogether. Feeling he is being cheated while still doing whatever he can to keep his date, Greg enters into a negotiation with his parents as to his punishment. Based on Greg's argument, Mike believes that there may be a better way for Greg to learn that what he did was wrong through another method. Meanwhile, Peter, when learning about the frog jumping contest, believes that a wild and free frog from Burke's Pond will do better than Bobby's $2 frog. Only the results of contest will tell for sure.
The kids want to buy Mike and Carol an engraved silver tray as their anniversary gift, but Jan goofs up on paying for the tray. To fix the mistake, Jan convinces her siblings to audition for an amateur talent show.
Marcia is in seventh heaven when the school's star football player, Doug Simpson, asks her out for a date for this Saturday. After she accepts, she remembers that she already has a date for Saturday night with a nice but somewhat plain boy named Charley, who adores her. As she would rather go out with Doug, she uses the advice given to her by Greg. He says that to get out of a date, she should use the non-committal statement, "something suddenly came up", which is what she tells a dejected but understanding Charley. She's happy that she managed not to hurt Charley and keep her date with Doug, but she still feels terrible doing it. A few days before the date, Marcia gets hit in the face by an errant football, bruising and swelling her nose. Marcia tries to avoid Doug before Saturday, but if she does see him, she hopes he will be understanding of her less than perfect looks and that she won't hear the words "something suddenly came up" from him. Meanwhile, Mike and Carol can't agree on which wallpaper to use for their bedroom.
An elated Peter has just been offered his first job, working for Mr. Martinelli at the bike shop on weekends. As it's his first job, Mike advises him to be prompt, hard working and loyal. Peter ends up selling his parents on the idea of getting bikes for themselves, and he is a diligent worker. However, he is not a "business" oriented worker, as he is slow in getting the jobs done, and does maintenance that doesn't need to be done nor was requested. And Peter doesn't pick up on Mr. Martinelli's hints to get the job done quicker. As such, Mr. Martinelli has no choice but to fire him. Mr. Martinelli tells Peter that he'd like to have a chat with him at the end of the working day. Peter interprets the want for a chat as a probable promotion, which he tells Carol and Alice. So when the news is the exact opposite, Peter is crushed. But when the family throws him a surprise "congratulations on the promotion" party, Peter has to decide how to give them the news while saving face. This may be difficult in light of the family's want to frequent the store more and more because of Peter.
Carol lends Marcia her favorite earrings, which are family heirlooms. Although she is told explicitly not to touch them, Cindy can't help but try them on when Marcia isn't around. When called by her mother, Cindy hides the earrings in a towel on the bathroom counter. When finished dealing with her mother, Cindy returns to the bathroom to find the earrings are gone. The one person Cindy confides in is Peter, who is learning how to be a detective akin to Sherlock Holmes and who she thinks can help her locate the earrings without anyone else finding out what they're doing. Can they find the earrings before anyone finds out Cindy lost them? Meanwhile, Mike is letting Carol decide what costumes to wear for a costume party they attend every year. Mike isn't as easy going about Carol's suggestions as he initially lets on he would be.
Carol's Kentucky grandmother, Connie Hutchins, who is young in spirit and body and who has a modern sensibility, decides at the last minute to make a visit. It is bad timing if only because Mike and Carol have previous engagements, leaving Grandma largely with the kids. But Marcia and Jan in particular think they have a better way for their great-grandmother to spend their time while in town. As Great-grandma has never remarried, the girls think that they have the perfect person with who she should meet and fall in love with: their great-grandfather, retired judge Henry Brady. Although their meeting starts off cordially enough, Great-grandma and Great-grandpa quickly have a falling out, largely because they are diametrically opposites: Great-grandpa is conservative and a traditionalist, who believes that spouting Latin is a good time. Despite facing this setback, Marcia and Jan are determined to prove that opposites truly do attract.
Bobby and Cindy have been chosen to take the test for their respective grades to see which four students will represent Clinton Grammar School at the upcoming "Question the Kids" television quiz show. Humble Cindy asks for help studying from everyone in her family as she believes only hard work will yield positive results. Right before the exam, Cindy, despite her constant studying, states that she can only do her best and hopes that is enough to be chosen. Bobby, however, gets an extreme case of swelled head, he who believes he's a cinch to be chosen. As such he forgoes studying. Cindy's hard work pays off as she is indeed chosen, but Bobby, to use his own words, gets "wiped out" by the exam and doesn't make the final four. These results lead to the swelled head getting transferred to Cindy, who believes that she is now a celebrity. Her swelled head does affect her performance on the quiz show, but not quite in the same manner that it previously affected Bobby. Meanwhile, Mike and Carol are planning on holding a small barbecue for a few friends. That planned dinner constantly gets changed, from the ever growing invitation list, to the meal to the date.
As Greg and Peter head off on their respective dates, Bobby dismisses the idea that kissing a girl is something he will ever want to do. He changes his mind after he is kissed by Cindy's friend Millicent, who does so to thank him for protecting her from bullies. After the act, he sees skyrockets, but doesn't want anyone to know either that he was kissed or that he enjoyed it. What Bobby is unaware of is that the kiss is witnessed by Cindy who has a penchant for blabbing. Bobby may have a bigger problem when after taking some advice from his father, Bobby ends up kissing Millicent just to see if what he felt the first time around about Millicent holds true. What Millicent tells him after the kiss is that she may be contagious with the mumps. She will know for sure if she does have the mumps after her visit to the doctor's tomorrow. Until then, Bobby tries to stay clear of everyone, or else fear having to tell them about how he may have contracted the mumps. Meanwhile, everyone in the family is preparing to attend a roaring twenties party.
Mike and Carol are boning up on their Spanish in preparation for a business dinner with the Calderons, a client and his wife from Mexico City, Señora Calderon specifically who Mike is uncertain if she understands or speaks English. Meanwhile, Greg has a much coveted date with Sandra Martin. Their date is threatened when Sandra announces that her eighteen year old cousin Linda is visiting from out of town. Sandra won't leave her cousin alone while she's in town. Greg vows to get Linda a date for the evening so that they can make it a foursome. The description that Sandra, who has not seen Linda in six years, provides of her then twelve year old cousin - "ponytail and braces" - makes the rounds to all Greg's friends before he can ask them to be Linda's date. As such, Greg can't find anyone who will agree to be Linda's date. When Peter boasts about how old he is now, Greg believes he's found his fourth, Peter, who is to masquerade as Greg's friend, "Phil Packer", from another high school. That masquerade includes Peter to deepen his voice, don a fake mustache, and attend a crash session of the Greg Brady class on how to act older. Linda ends up being a knock-out. After the date, Peter mistakenly believes that he is now God's gift to the young adult woman. What happens on that initial date and a subsequent follow-up date unwittingly threatens Mike's account with Calderon.
A big football game between Westdale High and Coolidge High is happening in 24 hours. But as big a rivalry between the two team occurs off the field when Coolidge steals Westdale's mascot, a bear cub. In retaliation, Westdale steals Coolidge's mascot, a nanny goat named Raquel. Greg is tasked with hiding Raquel at least until after the game, which he tries to do in his bedroom. Keeping Raquel a secret in the house may be a difficult task. Greg thinks he may have a sympathetic person in the house in the form of Mike, who also pulled such a prank when he was in high school, but who was suspended at the time for doing so. Someone not sympathetic is Carol, who, with some of the other mothers and the boys' stern vice-principal Mr. Binkley, hold an emergency PTA meeting to decide what form of punishment is just once the mascot stealing culprits are found out. When the PTA at the last minute changes its meeting venue to the Brady house, Greg's task changes to trying to get Raquel out of the house from under their noses.
Bobby saves Peter from potential serious injury after he pushes him out of the way of a falling ladder. A grateful Peter offers to become Bobby's "slave for life," something that Bobby takes quick advantage of.
While Marcia is hanging posters advertising Westdale High's upcoming "massacre" of Fairview High at this weekend's league championship football game, she is approached by Jerry Rogers, the quarterback of Fairview's team. To Jerry, asking Marcia out on a date is more important than school loyalty, or so he tells her. What she doesn't know is that Jerry is trying to gain access to any secret that Greg, Westdale's halfback, may have lying around to assist in Fairview beating Westdale, most specifically the Westdale playbook. Bobby does see Jerry trying to steal Greg's playbook, which Marcia does not believe or want to believe. To test what Bobby claimed to have seen, Greg, with Marcia's knowledge, leaves a fake playbook lying around to see what becomes of it. Meanwhile, in the lead up to the big game, Carol is expecting a visit from Tank Gates, her high school sweetheart from her days at Westdale. Tank was the star quarterback who went on to play pro football. As Carol extols the virtue of Tank, Mike begins to feel a little inferior. What Mike eventually learns is that Tank doesn't try to make others feel inferior, but make himself appear superior.
After Marcia and Cindy are chosen to participate in their class' ballet recital but Jan isn't, a dejected Jan decides to quit ballet altogether, realizing that she doesn't have the aptitude for it. Carol suggests she try other activities such as other forms of dance as Jan is sure to find one she both likes and is good at. But activity after activity seems ultimately to fail for Jan. Greg comes up with a plan to cheer Jan up, not really realizing that his plan only masks the problem of Jan really needing to find something at which she's good. As Jan tries harder and harder to find that perfect activity, she may unwittingly stumble onto her real talent. Meanwhile, Mike is preparing a gourmet dinner whose menu is top secret. Carol and Alice are dying to find out what's on the menu. Mike may have one major flaw with his dinner which is no fault of his cooking skill.
Mike has a big surprise for the family. His boss, Mr. Phillips, has approved the King's Island amusement park plans he has been working on and wants him to go to Cincinnati to present them. In turn, Mike can bring along the family to spend time at King's Island. They are all excited by the news. Once there, Mike is dismayed to learn that he only has a truncated thirty minute meeting to present the plans before the amusement park's directors, Mssrs. Remington and Dempsey, head off on another business trip. Regardless, Mike vows to have a good time seeing as much of the park with the family before his meeting at one o'clock in the afternoon. The morning adventures include Greg trying to find a girl he just met and likes named Marge, who works at the park dressed as an animal, but Greg doesn't know which one. And Bobby and Cindy try to justify eating a lot of junk food before their scheduled meeting with the family for lunch. At lunch, Jan asks her father if she can use one of his two canisters, which currently hold the amusement park plans, to put in a poster she just purchased. As Mike puts all the drawings in one canister, he gives the other to Jan. Unfortunately for Mike, he takes Jan's canister to the meeting, while Jan takes his. By the time he finds out the error at the meeting, he has only thirty minutes to find Jan and return to the meeting with the drawings. With ten minutes left, Mike finally finds Jan, who he learns lost the other canister. It's a ten minute race as everyone in the family scours the park to find the lost canister.
An honored Jan has been nominated for most popular girl of her class, but doesn't expect to win against the "brainy, beautiful and built" Kathy Williams. She and her entire family are nonetheless excited at the news. To win, Marcia suggests she campaign, which she does with help from her family. While her family makes and distributes campaign materials, Jan promises anything to voters when asked, including the help of others without even asking them. The campaigning works as Jan wins, but her promises go by the wayside as the election is now over, as she no longer needs votes and as she achieved her only goal of winning. As such, Jan goes from being most popular girl to being least popular girl, which she doesn't realize as the election win in and of itself is the validation from her peers that she needs that she is the most fantastic girl in her class. Is there any way this turn in her popularity will sink into her head, and if so can Jan redeem herself to her classmates and siblings before an impeachment? Meanwhile, Mike is taking Carol on a long talked about extended weekend getaway to the beach as a second honeymoon. But plan after plan is sidetracked to what ends up being a totally different experience for that weekend.
Mike and Carol's friends, nightclub performer Ken Kelly and his wife Kathy Kelly, have just purchased a larger house close to the Bradys. They announce to Mike and Carol the reason for the larger house is because they have just adopted an eight-year-old boy named Matt. Although Matt loves being adopted and loves his new parents, his transition to the Kelly household is not an entirely smooth one since Matt misses all of his old friends at the adoption home, most specifically his best friends Dwayne and Steve, who referred to themselves as the Three Musketeers. Ken and Kathy decide that if they are going to have an instant family, that raising two boys would be just as easy as raising one. The question becomes which of Dwayne or Steve, if either, is the one they are going to choose. That becomes a more difficult decision than they had first imagined after they meet the two boys. Their new enlarged family may be torn apart before it even has a chance to develop due to the intolerance of their neighbor Mrs. Payne, who not only implies that she doesn't like children but that she finds certain other aspects of the children's basic characteristics offensive.
Marcia battles nerves and Greg's sexist remarks when she tries to get her driver's license. Eventually, the debate over which gender has the better driving abilities leads to a winner-take-all driving test in a vacant parking lot.
Peter and Bobby believe they are seeing a UFO, which actually is part of an elaborate hoax being played by Greg. The trick backfires though when Peter and Bobby take pictures, which lead to a government investigation.
Peter meets a new transfer student named Arthur Owens, who looks remarkably similar to him except that Arthur wears glasses. Peter convinces Arthur to pretend to be him to play a gag on his family. Beyond some differences in tastes and interests, no one could tell that Arthur wasn't Peter. But what Arthur as Peter agrees to is keeping Mr. Phillips' visiting niece Pamela company on Friday night at the house. What Arthur is unaware of is that Peter already has a date on Friday to a costume party with Michelle, a girl in his class who he's been trying to date all year. So when Peter finds out about his date with Pamela, Mike won't let him back out of it. Peter figures that since Arthur agreed to the date with Pamela, he should be the one to keep the date, again pretending to be Peter. Problems arise for Peter when Friday night rolls around as Arthur is delayed and both Pamela and Michelle show up at the house, which means that Peter has to do a juggling act with the two girls in the same house until Arthur shows up, if he shows up.
Bobby and Oliver are at home when FBI agent Fred Sanders stops by the house to speak to Mike. What the boys don't know is that Mr. Sanders' routine and mundane task is to confirm a few issues with Mike's clearance for him to work on a building for a classified government project. Later, Sam stops by the house wanting to discuss a private issue with Mike, which Sam says he will divulge to Alice and the rest of the family at the proper time. Unlike what Alice hopes it is (such as a honeymoon cottage), the issue is Sam wanting to enlarge the butcher shop and needing some rough plans from Mike to see if it is financially possible. Because of the secretive nature of Sam's visit, Bobby and Oliver think it has something to do with Mr. Sanders' visit. After Sam tells Bobby and Oliver some wild tales of sleuthing and spying while he was in the army, Bobby and Oliver believe Sam is a spy working with Mike. Overhearing another story between Sam and his landlord, Mr. Gronsky, Bobby and Oliver further believe that Sam not only is a spy, but a double agent who is planning on handing over Mike's top secret "plans" to the enemy, Mr. Gronsky. Not being able to locate Mike to warn him, Bobby and Oliver decide to take matters into their own hands for the safety and security of the country.
The Bradys get a new pool table (as a thank you gift from Mr. Matthews for Mike's recent performance). Bobby soon becomes an expert in billiards and - during a family party - beats Mike's boss in a game of pool.