Kate uses Bertâ€™s birthday party as an entree into the exclusive soccer mom clique. Meanwhile, Diane refuses to admit she made a mistake when she makes an illegal left turn, and Warren develops a guy crush on the object of Hillaryâ€™s affection.
Jackie pitches a business idea to Pete, which he dismisses because of her poor entrepreneurial track record. But Kate thinks itâ€™s a good idea and partners up with her. Warren and Bert take karate lessons with Pete. When Pete learns the boys wanted to sign up because they think Pete is too non-confrontational, Pete has to prove to his sons that heâ€™s tough. Meanwhile, Hillary deciding to try out for track brings out Dianeâ€™s competitive side.
When Bert loses a tooth, Kate learns of Pete and Jackieâ€™s elaborate Tooth Fairy rituals. The fact that Kate doesnâ€™t share their excitement makes her question her maternal nature. However, in helping Warren with his first study date, Kate finds sheâ€™s more maternal than she thought. Meanwhile, when Hillary invites friends over to Dianeâ€™s house, she becomes nervous her mother will ruin the evening for her.
When Jackie has a drunken encounter with one of Peteâ€™s coworkers at Kate and Peteâ€™s party, Kate and Pete deal with the ensuing awkwardness. Meanwhile, Warren and Bert try to attract more viewers to their live-streaming gum show, and Meg helps Diane with a secret mission.