David Sewell

When once distant UFOs become a terrifying threat attacking Earth, a Marine staff sergeant and his team take it upon themselves to face the enemy and protect what remains of the planet.

With only three weeks left in his three year contract, Sam Bell is getting anxious to finally return to Earth. He is the only occupant of a Moon-based manufacturing facility along with his computer and assistant, GERTY. When he has an accident however, he wakens to find that he is not alone.