RYAN AND MARISSA�S RELATIONSHIP IS IN JEOPARDY ON �THE O.C.� THURSDAY, MARCH 9, ON FOX

Sadie and Ryan go on a road trip to find one of Johnny�s relatives and although Ryan returns to his old �Chino� ways, the trip brings him and Sadie closer. Could this be the end of Ryan and Marissa�s relationship? Meanwhile, Marissa is implicated in Johnny�s death and Seth and Summer discover Julie and Neil�s secret in �The Road Warrior� episode of THE O.C. airing Thursday, March 9 (9:00-10:00 PM ET/PT) on FOX. (OC-316) (TV-PG L)

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

Guest Cast: Michael Nouri as Dr. Roberts, Jeff Hephner as Matt Ramsey, Morena Baccarin as Maya Griffin, Nikki Reed as Sadie, Cam Gigandet as Volchok, Autumn Reeser as Taylor Townsend, Rod Rowland as Jack Harper, and Marc Vann as Detective Warner.

Guest performance: Tom Vek