On the far side of the Atlantic Ocean, in some of the world's most treacherous waters, Chris Fischer and his crew of the shark research vessel OCEARCH are on a mission to decode the mystery of one of the planet's most notorious predators: the great white shark. Fischer and the crew risk life and limb to tag and track the great whites, revealing where they feed, breed and prowl. / The crew has just 40 days to catch and tag 50 great whites, and they'll do so by doing what no other crew dares. They leap from our world into theirs, coming face to face each day with a predator that has terrorized the oceans for millions of years. On top of that, they have to deal with rough weather, rougher oceans and poachers who threaten to wipe out the entire species. Watch as the crew explores the relationship between man and beast—and the age-old struggle between man and nature. (Source: The History Channel)