When life gives you lemons, kill zombies - turns out lemon juice neutralizes the undead. After a failed attempt at running away, best friends Nathan and Misty return home expecting to face angry parents. Instead, they discover the military has destroyed the bridges out of their rural town and everyone's fled-except a small horde of the living dead. The stress of flesh-eating zombies may be more than their already strained relationship can handle. Even with the help of the town geek and lemonade-powered Super-Soakers, there's not enough time to squeeze their way out of this sticky mess. Unless...