It's Trey's birthday and Marissa, anxious to help Trey and Ryan forge a relationship, throws a birthday party for Trey at Caleb's mansion that turns out to be a rager. Sandy and Carter hit the waves together and decide to double-date and Summer discovers Reed's true identity, leaving Seth in hot water. Meanwhile, Julie leaves town on the heels of her disgrace, but comes home and reminisces about the Whitesnake concert with an "old" friend.

Sandy, Seth and Ryan travel to South Beach to visit the Nana, who is living in Miami Beach, FL. While playing shuffleboard at the Nana's coastal-living retirement community, Seth and Ryan meet Mary-Sue, who helps Seth get center stage on "Music Video Nation's" Spring Break 2005 television show hosted by Swerve and Pixie, star of "Sherman Oaks: The Real Valley." T.I. performs his hit single "Bring Em Out" in the episode. Meanwhile, on the Pacific Coast, Carter packs his bags and leaves Kirsten alone at "Newport Living" and Trey misinterprets Marissa's friendship.