Sanzu River
In the "Power Rangers Samurai" television movie "Clash of the Red Rangers," the Grinders accompanied a Venjix general known as Professor Cog to an alternate reality to obtain water from the Sanzu River. The Grinders are shown to transform into motorcycles. Further Grinders would later accompany a rebuilt Cog to this reality again in "Power Rangers Super Megaforce" only to engage the Warstar Armada's X-Borgs, whom they later teamed up with to battle the Megaforce Rangers before being destroyed.