There is a planet full of exotic interplanetary people. All of them living together in a dangerous multicultural world. And right there in the middle there is Megan! A young human girl fighting her way up on the deadly arena of the Intergalactic Mixed Battling Arts as she searches for her origins and other beings like her while she is obsessed with a mysterious, long forgotten planet: Earth.
Machine Girl is back... in the ring! Not only Megan is (again) proving herself as the best fighter in the Galaxy, but she's now part of a group of Space Pirates! And their latest adventure will lead them to an unexpected treasure, which will set a new course for the team headlong to a race of Space Invaders!.