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.

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Episode NameAirdateTrailer
2x12: Inherit the StarsMar 28, 2015
2x11: The UnvanquishedMar 21, 2015
2x10: Out of the PastMar 14, 2015
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