Description: During a routine submersible dive in the North Pacific Ocean, California oceanographer Laura Daughtery is attacked by an unknown life-form that appears out of a field of craters on the ocean's floor. Miles Barnett, a 14-year old North Carolina teenager, finds himself face to face with the strange sea creature after falling off his wakeboard during a nighttime outing with his friends. Meanwhile, Richard Connelly, a Louisiana man on a fishing trip, loses his brother in a suspicious diving accident when a creature drags him to the depths of the Gulf of Mexico.