Seth excitedly introduces a skeptical Ryan to Chrismukkah, a Cohen family tradition that resulted from Kirsten being Christian and Sandy being Jewish. As everyone prepares for a huge holiday party organized by Julie (recurring guest star Melinda Clarke), Seth continues attempting to juggle Anna (recurring guest star Samaire Armstrong) and Summer (recurring guest star Rachel Bilson), both of whom want to date him exclusively. Meanwhile, on opposing sides of a lawsuit, Sandy and Kirsten dread working through the holiday season, but Kirsten learns something about her father that could change everything. And Ryan and Marissa's shopping trip leads to trouble--and the beginning of even bigger problems for Marissa.
Download the TV Guide app for iPhone, iPad and Android!