Since Carter's been gone, Kirsten has been drinking more than just tomato juice for breakfast and when Sandy questions her, he's left alone in the bedroom. When Marissa acts nervous around Ryan, Ryan wonders if something has happened between Marissa and Trey. Summer, tired of Seth and Zach acting foolish, confronts Reed about the graphic novel and finds herself center stage at the "Atomic County" launch party. Meanwhile, Caleb shows Julie that a picture is worth a thousand words.