In 500 A.D, Hrothgar is a king of Denmark - a group of warruois chase a large and burly man. And the father instructs his son - Grendel - to hide from the attacker’s view. Grendel’s father is shot. Grendel finds his father’sbody and cuts the head off to take it home. Many years later, Grendel becomes as large and powerful as his father, he makes plan to revenge.