An oceanic observation station is in desperate trouble after a sudden shark attack wrecked the oxygen supply. The accompanying ship, a coast guard cruiser, and other ships in and around the Bermuda triangle are attacked as well. The US Navy sends a submarine to investigate, but soon they too are under attack.
Erick, a young Viking warrior, joins forces with a rival clan in order to rescue a kidnapped princess from the great Midgard Serpent. It's a perilous task with a risk far greater than merely their own lives; by rescuing the princess, they might cause Ragnarök - the end of the world.
