Ryan’s brother returns, bringing Chino’s baggage to Newport and driving the season's violent climax.
Seth competes for Summer’s affection against the "perfect" Zach Stevens, leading to the creation of the Atomic County comic book. The O.C. - Season 2
Ryan attempts a "normal" relationship with Kirsten’s half-sister, Lindsay Gardner. Ryan’s brother returns
"Marissa and Alex are no longer allowed in the red states." — The O.C. - Season 2
A groundbreaking storyline for its time, exploring Marissa's relationship with Alex Kelly (played by Olivia Wilde).
The "Chrismukkah That Almost Wasn’t" cemented Seth Cohen’s holiday as a pop culture staple, despite the family drama surrounding Caleb Nichol.