There is a "Mad Pooper" running wild at the Belcher children's middle school and Tina finds herself on a mission to get to the "bottom" of the situation.

Linda thinks Bob doesn't appreciate her and quits the restaurant to work at a grocery store. In her absence, Bob tries - and fails - to run the place on his own and the kids are stuck in the middle of the marital mayhem. Meanwhile, things get romantic for Tina when she meets her potential soul mate while restocking the milk fridge.