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; Taylor and Trip argue over her relationship with Pierce.
Katie strives to keep her long-separated parents apart when her father arrives in time to surprise the family for Christmas; 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; Oliver and Anna-Kat join forces in an attempt to win a popular radio contest; Taylor finally sees Pierce's true colors.
Greg enlists Oliver and Anna-Kat's help to drum up new recruits for the Westport Historical Guild; Katie does her best to support Taylor's dreams of becoming the next "American Idol."
