As part of his latest plan, Krang brings General Traag to Earth from Dimensio...
Teenage Mutant Ninja Turtles
Season 6 Episode 9: Nightmare in the Lair
Donatello's newest invention, the "Dream-o-Vision" helmet, causes Michelangelo and Leonardo to be stuck in a nightmare world & the lair is being terrorized by a Freddy Krueger-like person.