Steve McGarrett comes to Hawaii to avenge his father's death but when the governor offers his own task force, he accepts. He picks up team members on the way, Danny Williams, the head detective on his father's case, Chin Ho Kelly, a former HPD Detective who was fired for accused corruption and McGarrett's father's old patrol partner, Kono Kalakaua, a Cadet at the Police Academy who's 1 week from graduating, and Captain Lou Grover, a former Chicago PD Head of SWAT.

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?