In Tim Sutton's The Last Son, murderous outlaw Isaac LeMay (Sam Worthington) hears a prophecy that predicts he will be murdered by one of his sons. Determined to overcome this, LeMay sets out to find his sons and kill them himself. Pursued by bounty hunters and Sheriff Solomon (Thomas Jane), Isaac begins his hunt. But one son, Cal (Machine Gun Kelly), is on a killing rampage of his own. When the two meet, a deadly game of cat-and-mouse ensues.