Haunted by a sin from his past, Hercules (Dwayne Johnson) has become a mercenary. Along with five faithful companions, he travels ancient Greece selling his services for gold and using his legendary reputation to intimidate enemies.

But when the benevolent ruler of Thrace and his daughter seek Hercules' help to defeat a savage and terrifying warlord, Hercules finds that in order for good to triumph and justice to prevail, he must once again become the hero he was and embrace his own myth. He must be Hercules.