Teenage Mutant Ninja Turtles (1987)

S1E5 Shredder & Splintered

Shredder entices Splinter into the Technodrome, claiming that he holds a weapon capable of turning the sensei back into a human. Meanwhile, the Turtles face off against a gigantic Krang, who has taken on a new form, right in the bustling streets of New York City.