In the depths of the canyon, a new match begins. But this time, the stakes are higher; it's Mars versus planet Earth in a contest of the species. With Squad 1 fragmented, one of Earth's best featherweights must take on the reigning champion of Mars, a colossally armored beast.

Squad 1 is in dire straits, but luckily Akari and Michelle are there to drive back the threat from the crew's most terrifyingly elusive foe yet. When Squad 1 is joined by Squad 2, a breakdown from within the team threatens to divert what seem to be steps to victory.