With all of his friends headed to a party on the last night of 1999, Austin takes an extra shift at the Quality Mart gas station and is forced to look down the barrel of what it means to graduate high school and face a future stuck in his middle of nowhere hometown. He's got one night to make his dreams come true, legal or not, and he's taking it.

Meet Zach. Nice guy. Terrible taste in women. They leave him, but they never forget him. He's heading into the next bad break-up when the newest fad in H2O drinks starts turning his ex girlfriends into zombies who have one idea - getting back together with Zach! Three friends must stop the Ex's and save the world.