Since Carter's departure, Kirsten has been drinking more than just tomato juice for breakfast, & when Sandy questions her, he's left to sleep alone in the bedroom. Marissa's nervousness around Ryan leads him to wonder if something has happened between her & Trey (recurring guest star LOGAN MARSHALL-GREEN). Summer, tired of Seth & Zach (recurring guest star MICHAEL CASSIDY) behaving foolishly, confronts Reed (recurring guest star MARGUERITE MOREAU) about the graphic novel & finds herself center stage at the Atomic County launch party. Meanwhile, Caleb shows Julie that a picture is worth a thousand words.