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Teenage Mutant Ninja Turtles Season 10 Episode 2

Having recaptured the mutated Leonardo, the Turtles quickly restore him to normal using the vortex crystal technology. At first, it seems that the experiment has worked this time, but soon Leonardo’s foot starts glowing, he still has the disease, and which means it’s only a matter of time until he mutates once more.

Episode Title: The Beginning of the End

Air Date: 1996-09-23