Jack Shindo and Stanley Haggard are astronauts doing research on the planet Mars. On a routine mission to survey the desolate landscape, they found out that there are other living creatures on the planet! Their biggest threat is Goudis, whose monsters have been ordered to kill all life on earth. Returning from a mission on Mars, the Ultraman has to take on Goudis to save the planet and all the human beings on Earth!