New England's best bluefin tuna fishermen venture south to North Carolina's treacherous fishing grounds, the Outer Banks, where they battle the local fleet for the ocean's most lucrative prize. A single giant bluefin can be worth more than $20,000 but the dangerous waters, small quota and explosive rivalries make the Outer Banks, nicknamed 'The Graveyard of the Atlantic', the most challenging place in the world to catch these elusive fish.