: Seth’s lifelong crush, Summer Roberts (Rachel Bilson), and the newcomer Anna Stern (Samaire Armstrong) form a major romantic triangle during the season. Key Storylines and Episodes
: Secrets regarding Summer and Seth's relationship come to light. The Homecoming Index Of The O.c. Season 1
: Summer begins to show interest in Seth, while Ryan struggles with his fear of heights. The Perfect Couple : Seth’s lifelong crush, Summer Roberts (Rachel Bilson),