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Zach and the Alien Invaders
1987 TV series episode
Zach And The Alien Invaders.PNG
Season Code: 05
Episode: 18
Original airdate November 9, 1991
Written by Francis Moss & Ted Pedersen
Episode chronology
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"Leonardo, the Renaissance Turtle" "Welcome Back, Polarisoids"
Teenage Mutant Ninja Turtles 1991 Season
List of Teenage Mutant Ninja Turtles episodes


  1. "The Turtles and the Hare"
  2. "Once Upon a Time Machine"
  3. "My Brother, the Bad Guy"
  4. "Michelangelo Meets Mondo Gecko"
  5. "Enter: Mutagen Man"
  6. "Donatello's Badd Time"
  7. "Michelangelo Meets Bugman Again"
  8. "Muckman Messes Up"
  9. "Napoleon Bonafrog: Colossus of the Swamps"
  10. "Raphael Versus the Volcano"
  11. "Landlord of the Flies"
  12. "Donatello's Duplicate"
  13. "The Ice Creature Cometh"
  14. "Leonardo Cuts Loose"
  15. "Pirate Radio"
  16. "Raphael, Turtle of a Thousand Faces"
  17. "Leonardo, the Renaissance Turtle"
  18. "Zach and the Alien Invaders"
  19. "Welcome Back, Polarisoids"
  20. "Michelangelo, the Sacred Turtle"
  21. "Planet of the Turtleoids, Part 1"
  22. "Planet of the Turtleoids, Part 2"

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Zach and the Alien Invaders is episode #123 from season 5 (1991) of the 1987 Teenage Mutant Ninja Turtles cartoon series. This episode was the TMNT version of The Boy Who Cried Wolf.


Zach, the Turtles' young friend, and honorary fifth Turtle, is infatuated with comic books, especially "The Alien Invaders"... but the boy has "cried wolf" once too often as he seems to see aliens everywhere.

Zach "retires" his Turtle costume when his parents enroll him in the Teen-Hut Military Academy where they hope he will learn some discipline and live in the real world.

But after Zach arrives, he discovers that all his fellow cadets are zombies thanks to two aliens: Wingnut and Screwloose, who are disguised as Colonel Clout and Sergeant Rambo. Wingnut and Screwloose plan to conquer Earth using their "Mind Changer" on the young cadets.

Zach calls the police when Wingnut and Screwloose unleash a Robotic Cockroach onto The City, but they do not believe him. The only ones who might believe him are the Turtles, but he is captured before he can convince them that he is telling the truth.

It is not until the Robotic Cockroach starts attacking some construction workers downtown that Zach's alien invasion story is accepted as fact and not fiction.

Michelangelo and Donatello arrive at the Ten Hut Military Academy to rescue Zach only to find themselves in need of rescuing.

At the last minute, when Zach, Michelangelo and Donatello are strapped in the Mind Changer, Zach uses his Turtle-Com to overload the power of the "Mind Changer."

Defeated, Wingnut and Screwloose "beat feet" and Zach is honored as a hero by the city.




Home media releases





  • When Zach tries to get the attention of Donatello and Michelangelo, he bangs on a closed window. In the next shot, the window is inexplicably open, which conveniently allows for Donatello and Michelangelo to hear him yelling.


  • First and only appearance of Zach and Walt's parents, as well as both Wingnut and Screwloose.
  • Final appearance of Walt.
  • Final time Zach wears his Turtle mask.
  • Even though Wingnut and Screwloose were villians in the TV show, their toys listed them as allys.


External links

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