Teenage Mutant Ninja Turtles (2003) - Season 7 Episode 1 -

When the Time Window is finally repaired, the Turtles enter into it to head home, but instead of finding themselves back in the lair, our heroes find themselves with Viral! She’s escaped from inside Serling and has infected the Window so that she can send her most hated enemies on a harrowing, helter-skelter trip through the past, present and future and make them pay for all the pain they’ve caused her!