George Harrison, his beautiful wife Mona, and deep-sea diver Jeff Clark are off the coast of Africa with an English girl named Jan. They are looking for a fortune in diamonds at the bottom of the ocean near the voodoo-haunted island of Mora Tau. People say that Zombies, walking dead people doomed to roam the earth until people stop trying to find the sacred treasure, protect the treasure. Here, they are walking on the seabed, and there is a big difference between what they want and what the treasure hunters want.