Seawulf

A deep-sea modernization of the first two thirds of Beowulf.   When a strange sea beast begins killing off the workers on an eccentric millionaire’s oceanic research center, an infamous bounty hunter with a tortured past is called in to put the creature down.  He eventually wounds the beast, and a team is assembled to pursue the creature to its lair, where they must then do battle with its more formidable mother.