A high school prom faces a deadly threat: a flesh-eating virus that spreads via a popular brand of bottled water.

It is prom night in middle America. Tuxes have been rented and dresses have been bought. But when the dead unexpectedly rise from their graves to eat the living, it's up to the geeks, the nerds, the outcast and the losers who couldn't get dates to the dance to save the town from the undead. Unlikely heroes will rise to the challenge as they are forced to put aside their differences and band together to fight for their lives. Armed with bats, sledgehammers, garden tools and guitars, this rag-tag group of high-school teens are in for a prom night they will never forget.