 Ryan and Taylor decide to take a New Years Eve trip to Las Vegas, only Summer and Seth spoil their fun by insisting that they tag along. During the trip, Taylor begins to wonder whether Summer may be pregnant from her recent trysts with Seth, while he discovers the home pregnancy test in Taylor s purse and jumps to the wrong conclusion. But things take a turn when Summer s purse is stolen and the four of them end up at a rave populated by people dressed up as aliens to search for the purse snatcher. Back in Newport, Gordon Bullitt invites an reluctant Julie to his New Years Eve Blast Off party, while a mysterious man, calling himself Frank, shows up which may cause some trouble with Julie over her s and Kirsten s NewMatch dating service, while a bored Katilyn ponders her well being.