THE TRUTH COMES OUT ON "THE O.C." THURSDAY, JULY 28, ON FOX

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 on "The Showdown" episode of THE O.C Thursday, July 28 (9:00-10:00 PM ET/PT) on FOX. (OC-222) (TV-PG D, L, S, V)

Cast: Peter Gallagher as Sandy Cohen, Benjamin McKenzie as Ryan Atwood, Mischa Barton as Marissa Cooper, Rachel Bilson as Summer, Adam Brody as Seth Cohen, Kelly Rowan as Kirsten Cohen, Melinda Clarke as Julie Cooper, and Alan Dale as Caleb Nichol.

Guest Cast: Michael Cassidy as Zach, Logan Marshall-Green as Trey Atwood, Nikki Griffin as Jess, and Marguerite Moreau as Reed.