Existing secretly beneath the ocean's surface is the nation of Atlantis - but when Venom and a host of other alien symbiotes set their sights on the undersea kingdom, only the combined might of Spider-Man and Namor can help! Facing off against each other on the water's surface, both hero and villain blast away with their water-based weaponry! Creating a chaos rarely seen under the sea or on the surface, the battle rages on and the winner will determine the fate of Atlantis and indeed, the world!