Seth is determined to bring back the spirit and fun times of last year and won't stop until his plan is fulfilled. Alex's jealousy is fueled when Marissa enlists an unlikely partner to help her with the school bonfire. Meanwhile, Kirsten wants Carter to stick with the magazine despite his reservations and Sandy helps Julie keep her blackmailer at bay.

When Sandy becomes the honorary chair of the Newport Beach charity yard sale, he solicits help from Trey, who has his first run-in with the Newpsies. While Sandy auctions off Newport's finest, Kirsten and Carter share a table. When one of the auction's most expensive pieces goes missing, it's Ryan and Seth who also could use some help. Meanwhile, Trey looks for a more permanent place to live as the Cohens welcome yet another houseguest.