Submarine Titans

In the year 2047, a massive comet ravages Earth's surface and the remnants of mankind descend to the bottom of the ocean in order to survive. A century passes, and humans, resilient and enduring, slowly create new life in their cool blue underwater universe. But even in the still of the deep, one truth remains... where man goes, war soon follows. The craddle of civilization has spawned the seeds of man's destruction and now all the oceans of the world are not big enough for the embattled civilizations of the power-hungry White Sharks, the technologically savvy Black Octopi and the alien Silicons.