Nothing gets between Anne Marie and her board. Living in a beach shack with three roommates including her rebellious younger sister, she is up before dawn every morning to conquer the waves and count the days until the Pipe Masters surf competition. Having transplanted herself to Hawaii with no one's blessing but her own, Anne Marie finds all she needs in the adrenaline-charged surf scene ... until pro quarterback Matt Tollman comes along. Like it or not, Anne Marie starts losing her balance - and finding it - as she falls for Matt.

Peter is a composer and a likable sad sack who's devastated when his girlfriend of five years, Sarah Marshall, the star of a cheesy CSI-style crime show, dumps him. He weeps, he rails, he mopes. Finally, his step-brother Brian suggests Hawaii, so Peter heads for a resort on Oahu where, as he's checking in, he sees Sarah and her new beau, Aldous, a polymorphously perverse English rocker. The weeping and moping start again, until Peter is rescued by Rachel, a thoughtful hotel clerk who invites him to a luau and to hang out. Although he constantly runs into Sarah and Aldous, Peter starts to come alive again. Will Sarah realize what she's lost, and what about Rachel?