As Kirsten's 40th birthday is nearing, Ryan and the Cohen men prepare a party for her while Kirsten receives news that will forever change her life. Meanwhile, Julie has a secret love affair that Kaitlin tries to stop; and Taylor visits a therapist who gives her advice while Ryan pretends not to miss her. Elsewhere, when the plan to save Newport Chuck falls through, Che finally learns that Seth is not his soulmate.

Episode Viewers and Ratings

Season 4 Episode 12 of The O.C. resulted in a 0.00 rating in the 18-49 demographic.

The O.C. Season 4 Episodes...

• s04e01 - The Avengers
• s04e02 - The Gringos
• s04e03 - The Cold Turkey
• s04e04 - The Metamorphosis
• s04e05 - The Sleeping Beauty
• s04e06 - The Summer Bummer
• s04e07 - The Chrismukk-huh?
• s04e08 - The Earth Girls Are Easy
• s04e09 - The My Two Dads
• s04e10 - The French Connection
• s04e11 - The Dream Lover
• s04e12 - The Groundhog Day
• s04e13 - The Case of the Franks
• s04e14 - The Shake Up
• s04e15 - The Night Moves
• s04e16 - The End's Not Near, It's Here

The O.C. Show Summary

The O.C. - also known as Orange County, California - is an idyllic paradise, a wealthy, harbour-front community where everything and everyone appears to be perfect. But beneath the surface is a world of shifting loyalties and identities, of kids living secret lives hidden from their parents, and of parents living secret lives hidden from their children. 'The O.C'. tells the story of the Cohen, Cooper, and Nichol families, and Ryan Atwood, a troubled teen from the wrong side of the tracks, who is thrust into this world, and who will forever change the lives of the residents of The O.C.