A mysterious creature lands on Earth from the Moon. It soon starts to wreak havoc on shipping and seems to be affecting the water currents globally. The team and Godzilla must stop it before it causes worldwide devastation.

While investigating an ocean volcano, the team find the volcano oozing a strange liquid that causes sea creatures to turn into giants. The team and Godzilla must find a way to get the creatures back to their normal size before they threaten nearby shipping lanes.