Embarking on an epic adventure off the coast of New England, Trev Gowdy and Fred Levitman brave the dark depths of the ocean in search of monstrous pelagic species like Tuna, Swordfish, and Sharks. The abyssal canyons of the continental shelf are unusually rich in life due to their unique chemistry, shrouded in darkness and teeming with leviathans, After Fred and Trev meet with a crew fully equipped with hundreds of thousands of dollars' worth of heavy tackle, two boats set sail, navigating 120 miles and 7 hours to reach an underwater canyon. In the dead of night, the echo-sounder reveals a massive congregation of fish, igniting an extraordinary fishing frenzy under the twinkling stars.