Kirsten's drinking gets heavier in the wake of Caleb's death in 2x23 "The O.Sea (airing Tue 5/7) and as a result the Cohen matriach is shipped off to rehab after an intervention by the Cohen/Nichol clan. Jimmy and Hailey return (separately), Hailey helping Kirsten through and mourning her fathers death, Jimmy supporting Julie and Marissa through their tough period - and re-committing to Julie. The Coopers makin a comeback, who'd-a thunk it?
Finally in the biggest finale story, after Seth/Summer and Ryan/Marissa both reunited at the end of Episode 2x23, Big things are set to happen. Trey is told to leave OC by Ryan after a drug-related shootout at the Bait Shop after Caleb's funeral. Everyone survives that but Marissa ends up with a cut to the head. She finally breaks down in front of Summer telling her about Trey. Summer informs Seth of the development - and the nerd, doing the first unselfish thing he's done all year, informs Ryan.
Filled with rage, the young Atwood boy heads to Trey's aptmt to settle things once and for all. Trey pulls a gun on him and Ryan backs away, but once Trey loses focus Ry charges at him and a struggle ensues. Marissa comes in after Seth/Summer have told her to help get to the aptmt. She tries to pull Trey off Ryan but isn't successful. Trey is about to kill Ryan with a telephone when Marissa picks up the gun, fires off a shot, and kills Trey. Summer and Seth arrive as an exhausted Ryan joins Marissa, shaking in the corner after pulling the trigger. All this time the eerie a'capella "Hide and Seek" by Imogen Heap plays as the season fades out, leaving us wondering what is next.
