As the teachers return from summer break, Ms. Watson tries an ultra premium online dating service and Ms. Snap learns that she's been given the worst group of kids in school; Mrs. Adler is assigned to a mobile classroom.
There's a trespasser at Fillmore and a new security guard is hired; Ms. Snap and Ms. Bennigan hold a ''Women Empowering Women'' workshop; Mrs. Adler takes stranger danger too far; Ms. Watson purchases a male safety dummy.
Mrs. Adler and her husband move into a tiny house; when Ms. Cannon's homemade jewelry shop fails, Ms. Watson and Ms. Snap try to boost her morale; Ms. Feldman fakes a lesson and Ms. Bennigan struggles with a student.
Ms. Bennigan learns Hot Dad's son has to repeat second grade; Ms. Snap brings her dog to school as a therapy dog; when Ms. Feldman has to teach her students Common Core, she discovers it's more complicated than she thought.
Ms. Snap decides to run for School Council and is thrown into a world of double standards; Ms. Bennigan, Mrs. Adler, Ms. Feldman, and Ms. Cannon help with the campaign, but Ms. Watson takes longer to get on board.
Ms. Snap struggles with the idea of turning 31 and tries to regain her youth; Ms. Bennigan offers to baby-sit Blake for Hot Dad; the teachers deal with every teacher's nightmare when the copier breaks down.
Mrs. Adler has to coach Fillmore's kickball team and is surprised to see a group of overly-confident dweebs show up; Principal Pearson reviews security footage and discovers the teachers' skeletons in the janitor's closet.
Ms. Feldman struggles between her budding romance with Fillmore's new anti-drug officer and her love of marijuana. Ms. Watson becomes addicted to bingo; Mrs. Adler wreaks havoc when she tries to quit smoking.
When Ms. Bennigan and Hot Dad become official, Ms. Snap thinks that Ms. Bennigan has abandoned her and begins sitting in on their dates. Meanwhile, Mrs. Adler and Ms. Feldman try to track down a troublemaker.