Calvin Barr was in his youth a legendary assassin who worked for the US government and was tasked with killing Hitler. He now lives on his own, being old and very bitter in his soul. One day, he is asked to return to work to participate in a last ultra-mission mission; that’s to find him and eliminate Bigfoot! Bigfoot is heard to have been infected with a devastating disease that could spread to the human population if the creature remains free in the forest for too long. During the mission, Barr’s past war veteran is presented with archive images.