Wilder continues to revisit his past when he kidnaps a former member of his gang who turned against him, and Shūta has to lead the Headmaster Juniors in rescuing him.

A new threat to the Autobots arrives from space in the form of Sixknight, a Six Changer who targets Ginrai in order to prove his worth to the Decepticons. But Sixknight is in for a shock when he discovers the true nature of his opponent...