Grendel(2007)

An Unstoppable Monster Held A Kingdom Hostage. A Hero Set it Free.

King Higlack of the Gauths entrusts prince Finn and a fire ball weapon to his champion, slayer Beowulf. They lead twelve men on a mission to help king Hrothgar of the Danes, whose once glorious realm is terrorized by the undefeated monster Grendel. The task is made more difficult as Hrothgar kept gruesome secrets.