Beyond the Donatello Nebula
Teenage Mutant Ninja Turtles (1987) episode
Season Code: S04E36
Episode: 102
Original airdate December 1, 1990
Written by Dennis O'Flaherty
Episode chronology
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"Raphael Drives 'Em Wild" "Big Bug Blunder"
Teenage Mutant Ninja Turtles 1990 Season
September 8, 1990 - December 1, 1990
List of Teenage Mutant Ninja Turtles episodes


  • Syndication
  1. "Plan Six From Outer Space"
  2. "Turtles of the Jungle"
  3. "Michelangelo Toys Around"
  4. "Peking Turtle"
  5. "Shredder's Mom"
  6. "Four Turtles and a Baby"
  7. "Turtlemaniac"
  8. "Planet of the Turtles"
  9. "Name That Toon"
  10. "Menace Maestro, Please"
  11. "The Turtles and the Hare"
  12. "Once Upon a Time Machine"
  13. "Rondo in New York"
  14. "Superhero for a Day"
  15. "Back to the Egg"
  • Saturday Mornings
  1. "The Dimension X Story"
  2. "Son of Return of the Fly II"
  3. "The Big Zipp Attack"
  4. "Farewell, Lotus Blossom"
  5. "The Big Cufflink Caper!"
  6. "Rhino-Man"
  7. "Were-Rats from Channel 6"
  8. "Bebop and Rocksteady Conquer the Universe"
  9. "Slash - The Evil Turtle from Dimension X"
  10. "Rebel Without a Fin"
  11. "Poor Little Rich Turtle"
  12. "The Foot Soldiers are Revolting"
  13. "Big Bug Blunder"
  14. "Donatello's Degree"
  15. "Raphael Meets His Match"
  16. "Raphael Knocks 'em Dead"
  17. "Donatello Makes Time"
  18. "Leonardo Lightens Up"
  19. "Funny, They Shrunk Michelangelo"
  20. "Michelangelo Meets Bugman"
  21. "Leonardo Versus Tempestra"
  22. "What's Michelangelo Good For?"
  23. "Beyond the Donatello Nebula"
  24. "Unidentified Flying Leonardo"
  25. "Raphael Drives 'Em Wild"
  26. "Splinter Vanishes"

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"Beyond the Donatello Nebula" is an episode of the fourth season of the 1987 Teenage Mutant Ninja Turtles cartoon series.

Plot Synopsis

Donatello is using one of his devices to send messages to outer space in hopes of making contact with alien (preferably turtle-based) life. He has apparently found a "Turtle Nebula," and is determined to get a response. Michelangelo messes with him by piping in through a Turtle Com, which causes the angry Donatello to depart the lair.

He climbs to the top of the Channel 6 building and begins transmitting again. His message strikes a passing spaceship, which lands near him. A vaguely lizard-like alien emerges and babbles at him before turning on his translator, introducing himself as Algernon (or Algie). Apparently Donatello's transmission broke Algie's spaceship, and he demands that the Turtle fix it. Donatello tries, but clearly has no idea what he's doing.

April does a news report on "Hostile Hiram Grelch," a clearly evil businessman who is planning to take over Channel 6. During the broadcast, she screams and the camera cuts out.

Donatello hears her scream, as does Algie, who is capable of transforming into other things as a form of camouflage. They rush down to the news room, where two of Grelch's goons are menacing her and Vernon. They shoot Vernon with a mass of sticky glue, and are preparing to do likewise to April when Donatello and Algie burst in. But after a brief fight, the two of them are encased in a glue ball, and April is abducted. Fortunately Algie is able to free them (and Vernon) with his mind powers.

They pursue the car April is in, ending up on a mad chase in and out of subways and seafood markets. They end up at Grelch's building, which is surrounded by a forcefield. The two double back to Channel 6, but are horrified to see that Algie's spaceship has been stolen by Grelch's goons. Even worse, Algie confirms that if it's taken apart to see how it works, it will blow up the entire planet.

Of course, Grelch's men are doing just that, frustrating his plans to take over intergalactic businesses as well as earthly ones. He also is keeping April as a hostage, planning to kill her if he isn't sold Channel 6.

Donatello deduces that the forcefield is based on cathode rays, and plans to use some old cheesy movies to feign an attack on the building. He gets Algie to look like a three-eyed monster, and declares on live TV that the warlord of the Turtle Nebula is enraged by Grelch's theft of his spaceship, and will declare war if it isn't returned. A giant version of the disguise appears outside Grelch's building.

Grelch and his henchmen desperately try to put the ship back together as Donatello and Algie make their way inside via the sewers. Unfortunately, the ruse is revealed when a used car commercial starts. But just then Algie switches off the power, and the other Turtles make their way into the building and free April. April uses the glue gun on Grelch and his men, and Donatello and Algie come bursting in.

Everyone leaves on the Turtle Blimp, and they haul Algie's spaceship back to the lair. Unfortunately there's no way to get it going, because it has no fuel. Just then Michelangelo comes in with several pizzas, and it turns out that pizza is what the spaceship runs on. Algie takes all the pizzas, and the spaceship vanishes.




Home media releases


  • Teenage Mutant Ninja Turtles: Beyond the Donatello Nebula


  • Teenage Mutant Ninja Turtles Season 4
  • Teenage Mutant Ninja Turtles: The Complete Classic Series Collection


Animation errors

  • When Donatello tells Algy to destroy Grelch's forcefield, he fully becomes Michelangelo.
  • Immediately after Donatello becomes Michelangelo, when the other Turtles pull up to the force field-covered tower building in the Turtle Van, the circular turtle shell on the front of the van that normally says "TURTLES" reads "UTLE."
  • After Michelangelo runs from the cops wearing a dog mask, Donatello is seen in the Turtle Van, but he's not with the Turtles.
  • When Leonardo unties April with his katana, he fully becomes Donatello, who's not even in this scene. However, Donatello is still seen with Leonardo's katana.
  • Part of the Channel 6 news desk disappears when Grelch's goons back April and Vernon up against the wall.
  • The '6' on the Channel 6 building's logo is colored yellow instead of red when Donatello and Algy look over to Grelch's penthouse.
  • When Donatello introduces Algy to the Turtles, the ties on his belt are missing.
  • Michelangelo's right wrist band is purple when he takes a mask out of the Turtle Van drawer.


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