Summer and Julie talk about the latter's relationship with Dr. Roberts when they suspect that he wants to take Julie on a cruise to Mexico. Meanwhile, Sandy travels to New Mexico to the local jail to visit Dawn Atwood and to ask her to attend Ryan's 18th birthday party being held at the Bait Shop. In the aftermath of his breakup with Marissa, Ryan debates whether or not to move on with Sadie after he finished restoring Johnny's house. Volchok insists a little too much to have a talk with Marissa, and Matt has to rescue her. Later, she decides not to go to Ryan's birthday party, and goes to the beach to join Volchok.