When marine biologist Dr. Brian McCormick (Sean C. Michael) stumbles upon a recording of mysterious underwater sounds, he launches a scientific investigation to discover the creature responsible. In search of conclusive evidence, he and his investigative team are called to an unusual whale stranding in South Africa. Here they find the digested part of the remains of an animal that none of them can identify. As each of the body parts is autopsied, new pieces of the puzzle have emerged. As the image progresses, McCormick comes to a startling conclusion: This new sea creature is related to humans.