In order to get some time to themselves, Pete and Kate lie to Jackie and Diane about being in couplesâ€™ therapy. The exes catch on to their trick and confront Pete for lying in order to avoid conflict. Kate rises to his defenseâ€”that Pete has changed in his relationship with herâ€”but when Diane tells her that he switched Kateâ€™s awful chili out for his own special recipe for Warrenâ€™s Pioneer Day, Kate gets upset. Meanwhile, when Meg stays over to avoid Tevin, Hillary studies Meg for a psychology project on arrested adolescence.
Kate tries to play matchmaker to Diane and another parent on Warrenâ€™s field trip, but is shocked by what she learns in doing so. Meanwhile, Jackie takes it upon herself to care for Pete when heâ€™s sick â€“ but she finds herself more interested in having the run of the house. Also, Hillaryâ€™s educational skits and songs upstage Bert in his own classroom.
Kate persists in planning her dream wedding despite the added chaos from the arrival of her mother Cricket (guest star Megan Mullally) and Peteâ€™s parents. However, things come to a screeching halt when the family gets some bad news.