To open the hour, Seth wakes Ryan up on the air mattress and discusses their women problems. They go to the poolhouse and Theresa says that she is trying to save money to move to Atlanta with her cousin. When the two boys leave, she looks sadly at a pregnancy test.
During a breakfast at the Cohen's, Calen admits that he is going to Las Vegas. Sandy assumes that it's for a bachelor party and he invites himself, along with Ryan and Seth. The latter tells Summer that he is going because she seems intent on following her father's dislike of Seth. In order to gather enough money to help Theresa, Ryan and Seth decide to use fake IDs and gamble in Vegas. Meanwhile, Julie is jealous and convinves Kirsten to hire strippers for their bachelorette party.
In Las Vegas, Sandy finds out that Caleb plans on having Marissa live with him and Julie. He tells Jimmy this news. At the pool, a girl kisses Seth in order to pretend that she belongs at the hotel pool and she invites Ryan and Seth to a private poker game.
Back in Newport, the male strippers arrive at the Cohen's house. One of them propositions Julie and she confronts Hailey about it because Hailey set up the party. The two fine ladies end up fighting and tumbling into the pool. Heading back to Vegas, Ryan makes the snafu of letting Jimmy know about the deal between Caleb and Marissa while Summer surprises Seth in the penthouse. It turns out that the girl he was kissing - and her friends who just arrived - are prostitutes and their pimp is demanding $5,000.
Ryan goes back to the poker game and wins enough to pay off the pimp and help Theresa. Sandy, meanwhile, confronts Caleb about his scheming to buy The Lighthouse, after illegally preventing the liquor license, and selling it off to the highest bidder. Jimmy enters and punches out Caleb. Upon Ryan's return to Newport - after Seth and Summer have made up and she has even helped pay off the pimp - he learns that Theresa is pregnant and it may be his baby.
"The Strip" File: