They were testing dozens of humans, searching for one who showed bravery in the face of certain death.But what they got was Frank Ford.An alien invasion is imminent and an ancient being is desperate to find and appoint a Custodian to safeguard humanity.The Mingrein have overrun their creators and travel from world to world, laying waste to everything in their path. With the help of a clandestine organization, Groll the Undefeated looks to set up a long term occupation of Earth, where he and his fellow monstrous lizards can enslave and consume humans. As the only human to pass the test, Frank is given tools to aid him in defense of his home. The reclusive construction worker begins his journey from relative obscurity to galactic infamy. A man with nothing to lose becomes the perfect weapon.