In 2525 mankind started to colonize area. And the planet is invaded by an unknown alien race, and a bunch of cadets making an attempt to save lots of the planet. This crew is Thomas Laskey, who has doubts about his skills. Laskey and colleagues are rescued his staff by John-117, one of many tremendous troopers of the united states Spartan-II’s. And John is meant to encourage Laskey to regain confidence and to save lots of mankind from a really highly effective enemy.