Bobby loses a new shoe while playing in a forbidden mud puddle, and it is picked up by a baby who had strayed from her home the night before. This leads the police to believe that Bobby had had a hand in "rescuing" her.
Martha and Aunt Ruth decided that it is time that Bobby take lessons in something, and come up with...the accordion? Laughed at by his siblings and total strangers, Bobby rebels - until he finds out that playing the accordion can be fun.
Worn to a frazzle by looking after the Twins, Martha needs a break. Howie decides to send Derek and Bobby by plane to visit their grandmother for a while so Martha can get a bit of rest - but the boys miss their connecting flight!