Reviews - Deemed insane for claiming that the failed rescue mission in the Philippine waters was doomed because of a seemingly-extinct predator of epic proportions--the prehistoric, Megalodon--Jonas Taylor, the world's greatest deep-sea rescue diver, finds himself in the vast ocean realm of Mariana Trench, five years later. But, as three scientists of an underwater research facility near Shanghai get trapped inside a crippled submersible attacked by an unknown creature, Jonas will need to work fast to redeem himself. Could the disgraced rescuer's theories about the vicious underwater leviathan be true after all?