In a besieged land, the wanderer Beowulf hears of Grendel, a hideous man-eating creature that comes by night to devour the warriors trapped inside the Outpost. Ruled by Hrothgar, the stronghold is already strained by fear and suspicion, including questions around the death of his daughter’s husband. As Grendel’s attacks continue, Beowulf prepares to face the monster and the vengeance sought by its mother.