 Ryan is officially introduced to the bi-religious holiday of  Chrismukkah , thanks to Seth who has set this up for his parents; the Catholic Kristin and the Jewish Sandy. At the same time, Seth insists he has two Godly forces helping him as he continues to play both Summer and Anna by claiming he has chosen the other. Meanwhile, Marissa slides more into depression and debauchery over her family life problems and gets arrested for shoplifting with Ryan. It gets worse when she gets drunk at Seth s  Chrismukkah  party and nearly gets arrested for drunk driving while Ryan covers for her, and afterwords gets into a fight with her saying she can t do this to herself anymore. Kirsten does something that could cost her more than just her job over speaking out of her father Caleb s shady business deals. Summer and Anna find out about Seth s playing of them and decide to give him a  very special gift  to make him choose which one he wants to be with.