In Downey, the teenagers Chris, Scott and Tim are best friends and decide to drive to a bar downtown to a grungy band's gig. Chris' girlfriend Jackie, meanwhile, goes to a party with her preppy friends. While heading downtown, the trio of friends note that there are no cars on the roads despite the rush hour and then they find that the streets are empty. When they arrive in their destiny, they are chased by zombies and run to the bar. Chris decides to return to Downey while Jackie and her friends are attacked by a bunch of zombies...