Greg enlists Oliver and Anna-Kat's help to drum up new recruits for the Westport Historical Guild. Meanwhile, Katie does her best to support Taylor's dreams of becoming the next "American Idol."
Katie gets upset after discovering that the PIN code the Otto family uses for everything spells out Greg's ex-girlfriend's name. Katie retaliates by dragging out gifts from former boyfriends, and Taylor and Trip argue about her relationship.
Katie strives to keep her long-separated parents apart when her father arrives in time to surprise the family for Christmas, and Anna-Kat tries to help Trip win Taylor back.
Greg's insistence on doing the family's taxes prompts Katie to take matters into her own hands. Elsewhere, Oliver and Anna-Kat join forces in an attempt to win a popular radio contest, and Taylor finally sees Pierce's true colours.
Mother-and-son team, Camryn and Milo Manheim go up against Tony Award winner Marissa Jaret Winokur to win money for charity. In round 2, WWE superstars the Bella twins battle team MMA.