S1, E4: In the Technodrome deep under New York City, Krang reminds The Shredder that once again he has failed to destroy the Turtles. Krang demands a "body", mentioning his old home, Dimension X - which gives Shredder the idea to open the recently completed "Transdimensional Portal" so that he can retrieve advanced weapons to use against the Turtles. However, when Shredder opens the portal, he lets out three teenage Neutrinos in flying cars, chased by a flying jeep piloted by two of Krang's Stone Warriors. The Neutrinos blast through the Technodrome and escape. Bebop and Rocksteady fire on the Stone Warriors, General Tragg and Lieutenant Granitor, until Shredder establishes that they work for Krang.