In 1972, the Apollo 17 mission discovered a hypergate to Mars on the surface of the moon. Soon a war breaks out between Earth and Mars, and Martian soldiers begin to descend from the sky, riding steel giants, intent on exterminating humanity.
Aldnoah.Zero Extra Archives
Season 0 • Episode 1
EP 24.5 Fragment of Rain - The Penultimate Truth-
Season 0 • Episode 2