As Sandy and Kirsten Cohen (Peter Gallagher and Kelly Rowan) agree to take full legal responsibility for the troubled Ryan (Ben McKenzie), Newport's most prominent (and most attractive) young ladies prepare for the annual cotillion. Marissa (Mischa Barton) stage-manages matters so that Ryan will escort the lovely Anna Stern (Samaire Armstrong), while Seth (Adam Brody) is slated to escort his dream girl, Summer (Rachel Bilson) -- good news for him, if not for her. Elsewhere, Sandy expresses dismay over the 100,000-dollar loan extended by Kirsten to Marissa's father (and Kirsten's former boyfriend), Jimmy (Tate Donovan), who is currently the target of a fraud investigation. ~ Rovi