Conrad Ocean was once the most powerful shark beneath the sea — heir to the Ocean family fortune and in possession of everything that position implied: fame, influence, resources beyond what most could imagine. Then came the day he was exiled from the seven seas. The bitterness that followed became something uglier. Using the fortune he still had, Ocean built a business empire on land — skyscrapers, factories, everything required to pump toxic waste back into his former home. His robotic forces have nearly finished securing his global monopoly. One turtle stands in the way. Snap the Sentinel is done watching. It is time to raise shell.