It is the final weekend of summer and a group of Californian teenagers are looking forward to an upcoming surf contest. Rival gangs the ‘Vals’ and the ‘Lowks’ are confident that they will take home the trophy, but things become complicated when Reef Yorpin – leader of the Lawks – discovers his sister Allie has fallen in love with ‘Val’ surfer Nick after meeting at a beach party.
Corey and his band of skater buddies sometimes make mischief, but they’re more interested in girls and having fun on their boards than in getting into any real trouble. Notorious enemy crew the Daggers, led by Tommy Hook, get their kicks terrorizing the locals at Venice Beach. When Corey starts dating Tommy’s kid sister Chrissy, the Daggers are furious. The boys then take their beef to the “L.A. Massacre,” a deadly skate race down a canyon road.