Seth (Adam Brody) introduces Ryan (Ben McKenzie) to his own special bi-religious holiday, "Chrismukkah." But others are not in so festive a mood: embarrassed by the endless feuding amongst her family members, Marissa (Mischa Barton) finds solace in alcohol; Kirsten (Kelly Rowan) may lose everything she has due to her impatience regarding her mercurial father, Caleb (Alan Dale); and a choice between two very special gifts has the potential of causing great sorrow for one of the gift-givers. Taylor Handley makes the first of several controversial appearances as new O.C.er Oliver Trask. ~ Rovi