At the behest of the United States government, Aquaman and Mera have gone undercover on a resort island. Posing as the "Watermans", the couple partake of the resort"s tourist attractions and activities, while staying at the glamorous El Dorado Beach Hotel. One night, while renewing themselves, deep below the ocean waves, Aquaman and Mera are witness to a strange submersible craft approaching the island. The odd vessel activates a powerful suctioning device that begins to tear away at the island's mantle. Aquaman uses copious amounts of kelp, from nearby beds, to clog the suction device. Damaged, the craft glides away. Back at the resort, Aquaman and Mera resume their cover identities as the "Watermans", however, they are now observed by two shadowy figures. In their private bungalow, Aquaman and Mera affix specially designed diving helmets, filled with sea water, over their heads, and turn in for the night. Waiting until the King and Queen of Atlantis are fast asleep, a hulking figure enters their room through the window, and attacks Aquaman. The intruder grapples Aquaman, holding him fast in a crushing bear hug. Mera hardens the water in Aquaman's helmet to stone-like consistency. Aquaman begins using the helmet as a battering ram, head butting the intruder through the wall. As the man called Typhoon goes down, Aquaman spies his partner, a woman, outside the window, taking aim at Mera with a spear gun.Aquaman blocks the deadly shaft with his helmet. Typhoon and the woman, identified as the Huntress, flee the scene. Aquaman and Mera give chase, but lose them at the resort's swimming pool. The Huntress and Typhoon report their failure to the Supreme One, the man who leads the terrorist group, O.G.R.E. In a rare show of mercy, the Supreme One offers Typhoon, and the Huntress, one last chance to fulfill their mission. Setting up decoys of the "Watermans" surfing the waves, Aquaman and Mera return to the scene of the strange craft's assault on the island. Aquaman discovers...