THE KILLERS PERFORM ON "THE O.C." THURSDAY, DECEMBER 2, ON FOX

As Seth and Sandy embark on new adventures, they take the rest of the family along for the ride. Ryan and Seth go on an awkward double date to see The Killers perform in concert, with unexpected results. Meanwhile, Julie finds herself overwhelmed by her new role at the Newport Group and, as usual, is forced to turn to Kirsten for help on THE O.C episode "The New Era" Thursday, Dec. 2 (8:00-9:00 PM ET/PT) on FOX. (OC-204) (TV-PG L)

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, Tate Donovan as Jimmy Cooper, Melinda Clarke as Julie Cooper, and Alan Dale as Caleb Nichol.

Guest Cast: Michael Cassidy as Zach; Olivia Wilde as Alex; Shannon Lucio as Lindsay; Nicholas Gonzalez as D.J.; Gregory Itzin as Stephen Herbert.