Engine Banki!?

As the Go-On teams celebrate Sōsuke's recovery and their victory over Yogostein, Renn is inside the Ginjiro-go, hard at work on a new weapon. While Renn's back is turned, the Ancient Engine Souls jump aboard Sōsuke's RC truck and flee the Ginjiro-go. Kegalesia speaks at the Gaiarks' wake for Yogostein, only to be interrupted by a commotion caused by Kitaneidas, who had promised to avenge Yogostein, and had created a powerful Savage Machine Beast to do just that.