In an attempt to colonize Mars, 21st century scientists are tasked with terraforming the planet. Their goal is to seed the planet with a modified algae to absorb sunlight and purify the atmosphere, and cockroaches, whose corpses spread the algae across the planet as they feed, breed, and die.Five hundred years later, the first crewed ship to Mars lands and its six crew members are attacked by giant mutated humanoid cockroaches with incredible physical strength, later labeled "Terraformars"; t...