Shaun wishes he could go back in time to fix the past. A decade after his father unlocked a mysterious tomb and unleashed a mind-controlling virus; humanity continues to fight a losing battle. Shaun, confused and alone, runs to the only place he feels comfortable; the city. Walking the city streets at night, he quickly realizes that the infected are out of control; randomly killing pedestrians, and smashing everything in sight. It's not safe, not even for him. It's only a matter of days until martial law is declared. A riot breaks out, and buildings are set ablaze. Shaun can do nothing, but watch the city burn. But the cynical teen's last spark of hope flares when he sees two incredible guys step through a portal and disappear. He needs to find out how they did it, and maybe he can stop the apocalypse.