Episode Title:Into Dimension X!.Episode Description:After receiving a message from an aged Leatherhead that the Kraang have perfected the mutagen, Mikey heads to Dimension X to rescue him by using the portal the Turtles have. The others follow him, and they will need Mikey's expertise to figure out the Dimension in order to find the Kraang's fortress, which is guarded by the rock monsters Traag and Granitor, rescue Leatherhead and stop the Kraang's terraforming plot.