When an accused murderer goes on the lam, Shawn and Gus play bounty hunter, racing "Midnight Run" style to bring him in before the cops and a real bounty hunter get him first. However, the chase gets complicated when Shawn realizes the guy they are bringing in is innocent. Guest starring Kevin Sorbo.
Charlie is now dating Kandi's (recurring guest star APRIL BOWLBY) mother, Mandi (recurring guest star GAIL O'GRADY). Meanwhile, Alan is depressed because Kandi has left him and is staying with bitter Judith, who brainwashed her against him. At Mandi's urging, Alan goes to Judith's place to try to win Kandi back. Also, Kandi introduces Judith to Kandi's father, Andy (KEVIN SORBO - "Hercules: The Legendary Journeys," "Andromeda").
As the new year approaches, Ryan plans a special surprise road trip for Taylor and himself. But when Summer confronts Seth about not making any plans, Ryan's romantic getaway for two is spoiled. (New Year's Eve episode)
[Season Finale] In the emotional series finale of "The O.C.," Ryan, the Cohens, the Coopers and their friends build new lives, resolve lingering issues, face major decisions and undergo shocking personal transformations.
Newly engaged Seth and Summer both panic about the prospect of being married, but neither will break it off, despite the advice of their friends. Meanwhile, when Ryan's estranged biological father tries to reconcile with Ryan, Sandy remains dubious.