In the aftermath of the monster onslaughts, the shell-shocked survivors are saved by the mysterious prophet Shot Bus Gus, who seemingly has the ability to control the beasts. Hoping that he holds the key to survival, they follow him through the sewers to the city. They finally learn the secret of the beasts' origins and begin to hatch a plan. They decide the monsters have lunched on enough humans. This time, they are going to fight back and destroy the deadly creatures once and for all.