A group of working-class friends decide to enlist in the Army during the Vietnam War and finds it to be hellish chaos -- not the noble venture they imagined. Before they left, Steven married his pregnant girlfriend -- and Michael and Nick were in love with the same woman. But all three are different men upon their return.
After a plague devastates mankind, survivors attempt to return to normalcy in an industrial "quarantine zone." One such survivor is handy with robotics, and after a violent home invasion, he decides to get revenge using his skills.
