A prodigal son, on the run with the woman he loves, turns to a life of crime as an enforcer for a notorious loan shark, his father.

A freak hurricane hits Los Angeles, causing man-eating sharks to be scooped up in tornadoes and flooding the city with shark-infested seawater. Surfer and bar-owner Fin sets out with his friends Baz and Nova to rescue his estranged wife April and teenage daughter Claudia.