The sequel to 'Galaxy Destroyer' which finds our hero Harry Trent wandering Earth's post-apocalyptic landscape full of mutants, monsters, and fragmented human tribes. Harry's attempt to help a young girl rescue her sisters, leads him to a group of armed mutants led by a human madman attempting to breed them and take over the world.

In a dystopian future, Earth is invaded by aliens who have taken over the planet. A group of survivors band together to fight against the alien rulers. The battle for Earth's freedom begins as they face mutants, tribes, and dangerous landscapes. With limited resources and the odds stacked against them, they must use their wits and skills to defeat the alien invaders and reclaim their home.