 In "The War for Dimension X", the turtles learn the origins of the Kraang as they meet the Utrom council that consists of Bishop, Pawn, Queen, and Rook; Kraang Sub-Prime was once the group's Knight and the greatest Utrom hero until he betrayed them to join the Kraang.In this altered past, Kraang Sub-Prime captures the Salamandrians after they approach the Kraang about forming an alliance against the Triceratons, having learned that they are friends of the Turtles.He then tracks the arriving Turtles to the Utrom base, where he captures Queen and takes her back to his Sub-Command Center.