The search for new reserves never ends, and leading the search is the largest drilling and refining platform ever constructed-'Colossus.
As the drill penetrates through the seabed, 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. Colossus buckles under the pressure, and comes face to face with the most powerful oceanic predator that ever lived.
Now fate will pull humans 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.