When a covert desert base is forced to divert World War III against a formidable adversary, a group of commandos and weaponized dinosaurs are hired to get the job done.

A crack-pot scientist aligns with the Axis of Evil to bring down the United States with EMP blasts, toxic zombification gas and by unleashing the ultimate undead killing monstrosity: the Z-REX. When a hot-wired militia squad and a crew of college hipsters are thrown together to do something about it, chaotic Predator-Thunder action runs amok.