Oil...the quest for it is unrelenting. The search for new reserves of the 'black gold' never-ends and leading the search is Nexecon Petroleum and its flagship-the largest drilling and refining platform ever constructed-'Colossus" located in the freezing North Atlantic waters off the coast of Greenland. 'Colossus' will drill deeper than any rig ever has, a fact that gratifies Nexecon CEO, Peter Brazier, but that has geologists the world over up in arms, concerned that delicate ocean floor fault lines could be disturbed with catastrophic effects. Skeptical news reporter Christen Giddings and her cameraman Jake Thompson are invited by Braziera to document the safety of 'Colossus.' The powerful drill tears through the seabed, striking a rich oil deposit. As the drill penetrates further, it ruptures a fissure that reveals a second 'mirror' ocean that has existed beneath ours for millions of years. An ocean teeming with prehistoric life. As the choking oil posions the water, the frenzied creatures swarm for the surface. Colossus buckles under the onslaught. Brazier, Christen, and a team of engineers descend in Colossus' glass elevator to assess the damage and come face to face with the most powerful oceanic predator that ever lived. Carcharodon Megalodon. The giant ancestor of the Great White Shark. This eleven-ton 'killing machine' quickly stakes its territory in the waters surrounding Colossus with disasterous and horrific consequences, destroying and devouring anything in its path. Now fate will pull them together as they wager their changes of survival against the most fearsome creature that ever dominated the ocean, and pit the technology and machinery of man against beast. Megalodon...sixty feet of prehistoric terror.