The space station Europe-1 has been overrun by aliens. During one of the fights the nuclear cooling system has been damaged, resulting in a meltdown within hours. Your mission, as a team of five of the toughest persons in the Corps, is to infiltrate and gain control of Europe-1. You must sweep the entire station clean of aliens.
Zero Tolerance is an action-adventure game where you kill every single alien on each level. The five members of your team have different skills and start with different weapons, giving you five chances to complete the mission.