Kim (Selma Blair) moves back in with her mom, Kath (Molly Shannon), in the premiere episode of this sitcom following a dysfunctional mother-daughter duo and their adventures in middle-class suburbia.
Kath promotes her hair salon in a booth at the mall and asks Kim to model her edgy designs. Meanwhile, Craig's first day at a new job doesn't go well.
Kath feels insecure about her age and the scope of her wedding after Kim suggests she's too old for a lavish celebration. And Kim thinks Craig may be having an affair, so she investigates with help from her friend (Justina Machado).
Kath plans a lavish wedding after finding her dream dress, but her limited budget stands in the way of her vision for the big day. Elsewhere, Kim considers going back to Craig after learning that breeding his dog could be profitable.
Kath worries that Phil could be keeping secrets after she hides a secret of her own. Elsewhere, Kim goes speed dating with a friend (Melissa Rauch) to push Craig into getting rid of his dog to win her back.
Kath takes offense to the way Phil's best friend (Fred Goss) treats him but isn't sure if she should intervene. Elsewhere, Craig takes a stand against Kim's constant requests to prove to his friend (Jay Phillips) that he's not whipped.
Kath encounters a gay couple while shopping for her wedding; Kim's friendship with a former classmate piques Kath's curiosity; and Phil struggles with insecurity.
A stressed-out Kath visits Phil's life coach and spiritual adviser (Maya Rudolph) and is soon taken with the woman. Elsewhere, Kim enlists Craig to help her remove a boot from her car because she refuses to pay her parking tickets.
Kath and Phil throw a Christmas party in hopes of finding other couple friends. Their guests of honor are the mall security guard (David Koechner) and his wife. Elsewhere, Kim and Craig's friendship with Derrick falters at the Circuit Surplus holiday party.
Phil encourages his customer to live a healthier lifestyle. Meanwhile, Craig spends the money he anticipates making from selling his purebred puppies, which may turn out to be mutts after all.
Kath supports Kim on her quest to become an anchorwoman at the local news station. Elsewhere, Craig hits Phil's car and then accidentally has it confiscated by the police.
Kath and Kim compete for an opportunity to host Wynonna Judd (who makes a cameo) for dinner. The pair put on the ritz to impress the judges, but their efforts don't go exactly as planned. Elsewhere, Craig and Derrick try to compose a hit country song.
Kath tries out for "Cats" after an inspiring performance by a local celebrity (Jennifer Coolidge). To prepare herself for fame, Kath seeks spiritual advice from Athena (Maya Rudolph). Elsewhere, Kim takes a job in Phil's sandwich shop.
After discovering she's still married, Kath tracks down her ex (Ron White) to finalize their divorce. Meanwhile, Kim thinks she may have found her calling upon meeting a tough Roller Derby skater (Busy Philipps).
Kath takes measures to fix Kim's marriage after Kim and Craig's bickering ruins Kath and Phil's date. In on the plan, Phil teaches Craig how to be a better partner.
In order to prepare for Kath's bachelorette party, Athena brews a batch of her special tea for Kath, Kim and Tina (Melissa Rauch). Craig and Derrick, meanwhile, take a more traditional approach for Phil's bachelor party by hiring a stripper.
In the first-season finale, Kath asks Phil to move into her house, which she's sprucing up for the Parade of Homes. Elsewhere, Kim is peeved when Craig forgets their second-date anniversary, but Craig's omission is part of his plan to win her back.