In a distopic scifi future of 2031 where US elites have fled to Mars and Islamic radicals have destroyed the Soviet Union, Rueben Flagg is a stand-up comic who plays a cop on a TV show called "Mark Thrust, Sexus Ranger." Through a massive error in judgement, Rueben is drafted into the Plexus Rangers, the national militia/police force.

Placed in this position of power, Flagg's naivete is shattered when he discovers a vast conspiracy by the US government to sterilize the population and sell off the assets of the country to the highest bidder.