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Teenage Mutant Ninja Turtles (1987): Season 4: Episode 10

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Teenage Mutant Ninja Turtles: Sewer Heroes
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Episode Details & Credits

Syndicated | CBS | Other | Air Date: September 21, 1990
Summary: Krang interrupts all TV programs to announce that if Earth does not supply him with enough power for the Technodrome, he will vaporize one square mile of the City within the hour. Krang designed a Dematerializer using micro chips from an alien computer that Shredder found on a spaceship. While Rocksteady and Bebop are cleaning up the restKrang interrupts all TV programs to announce that if Earth does not supply him with enough power for the Technodrome, he will vaporize one square mile of the City within the hour. Krang designed a Dematerializer using micro chips from an alien computer that Shredder found on a spaceship. While Rocksteady and Bebop are cleaning up the rest of the material from the spaceship, they discard an electronic keyboard, that is still connected to the alien computer, through the Earth portal. The keyboard ends up in a secondhand store in the city. Howie Hardy, an out-of-work composer, and Irma are shoppping around for a keyboard for him and come across the one in the second hand store that came from Dimenxion X. They decide to buy it. Meanwhile, the Turtles spot a portal opening from their portal activity detector. They think that this somehow connected with Krang's plan so they set out to investigate. They discover that the keyboard is the object that came through the portal, but they are too late because Irma and Howie have already left with it. Howie takes the keyboard home and starts practicing on it. Soon after playing it, the keyboard starts doing weird things. It plays on its own. April, Irma and Howie don't realize it, but the keyboard has somehow shut the Dematerializer off. Krang discovers what happened and sends Shredder to destroy the keyboard. April sends for Donatello to see if he can fix the keyboard. When the Turtles arrive, they discover that Howie has the keyboard they've been searching for. Shredder arrives with Bebop and Rocksteady at about the same time and they try to get the keyboard back. While all this is happening, Howie turns the Dematerializer back on. Now it starts counting down from where it left off before. The Turtles realize they need to hook up the keyboard to something that will magnify the sound in order to stop the Dematerilizer permanently. After fighting off Shredder and Bebop and Rocksteady, the Turtles take the keyboard to the Channel Six News Building, broadcast the music over the Channel Six transmitter, and shut down Krang's Dematerializer for good. Expand
Genre(s): Comedy, Animation, Action & Adventure, Kids

Season 4 Episodes

Seasons & Episodes