Season 4

E1. Plan Six From Outer Space

Sep 10, 1990 · 22m

With the Technodrome in serious need for new equipment, Bebop and Rocksteady are sent to Earth, disguised in human form, to capture the Channel 6 building and return it to Dimension X.

E2. Turtles of the Jungle

Sep 11, 1990 · 22m

A professor's new ray-gun causes plants to go wild and his pet ape Jocko to become a giant rampaging monkey. By using the same ray-gun, Donatello is increased to Jocko's size so he can fight the giant ape and save April from him.

E3. Michaelangelo Toys Around

Sep 12, 1990 · 22m

While trying to see the new toys at the Toy Fair, Michaelangelo stumbles upon a plot to take over a noted toy company.

E4. Peking Turtle

Sep 13, 1990 · 22m

The Turtles must battle a reanimated Terracotta Army after Shredder steals an energy device shaped like a giant pearl, which is held and guarded by a Jade Dragon.

E5. Shredder's Mom

Sep 14, 1990 · 22m

New York is in the middle of an induced heat wave caused by Shredder, who must battle the Turtles and deal with his mother, Miyoko Saki, at the same time.

E6. Four Turtles and a Baby

Sep 17, 1990 · 22m

When General Tragg and his troops attack the Neutrino capital, the Neutrino leaders, Zenter and Gizzla, send their infant daughter Tribble through a portal to Earth, asking the Turtles to look after her, but Tribble causes big trouble for our heroes.

E7. Turtlemaniac

Sep 18, 1990 · 22m

An eccentric billionaire, Monroe Q. Flem, who is also a collector, wishes to collect every piece of TMNT memorabilia that he can get his evil hands on, including April and the Turtles themselves.

E8. Rondo in New York

Sep 19, 1990 · 22m

Shredder, Bebop, and Rocksteady are in town to steal a rare new mutagen created by Oswald Dren, a grad student. Some mutagen is accidentally spilled onto a reel of movie film causing monsters to come to life.

E9. Planet of the Turtles

Sep 20, 1990 · 22m

The Turtles must save the Earth from a massive energy drain and its Apocalyptic result by traveling to another dimension where turtles are the dominant species.

E10. Name That Toon

Sep 21, 1990 · 22m

A Technodrome computer disguised as an electronic keyboard ends up on Earth, and in the most unlikely of hands.

E11. Menace, Maestro Please

Sep 28, 1990 · 22m

The Turtles must contend with the "Phantom of the Floxy" while trying to hinder Shredder's latest plan to bring the Technodrome back to earth.

E12. Superhero for a Day

Sep 25, 1990 · 22m

Gadget Man comes out of retirement after 50 years, but is tricked by Shredder into fighting against the Turtles.

E13. Back to the Egg

Sep 26, 1990 · 22m

Krang hires a multi-dimentional ring-master who intends on making the Teenage Mutant Ninja Turtles part of his circus by using an anti-aging serum.

E14. Son of Return of the Fly II

Sep 15, 1990 · 22m

Vengeful Baxter Stockman and an A.I. computer return to Earth from a dimentional limbo and capture the Turtles while luring Shredder into their trap as well.

E15. Raphael Knocks 'em Dead

Sep 15, 1990 · 22m

Raphael must contend with a mobster named Pinky McFingers when he is kidnapped from a local comedy club.

E16. Bebop and Rocksteady Conquer the Universe

Sep 22, 1990 · 22m

On their latest trip to Earth, Bebop and Rocksteady steal a machine that makes everyone scared of everything.

E17. Raphael Meets His Match

Sep 22, 1990 · 22m

Raphael wins a ticket to a costume party on MacDonald Crump's yacht and decides to go disguised as a Teenage Mutant Ninja Turtle.

E18. Slash the Evil Turtle from Dimension X

Sep 29, 1990 · 22m

Bebop and Rocksteady use Krang's new Mutagen on Bebop's pet turtle Slash so he can do their housework for them. Slash runs away and is conned by an irritated entrepreneur into framing the TMNT.

E19. Leonardo Lightens Up

Sep 29, 1990 · 22m

A ray-gun makes Leonardo carefree and ignore his responsibilities. This leaves the Turtles defenseless and the city at the mercy of Maestro G Clef, a villain who destroys the city with music.

E20. Were-Rats from Channel 6

Oct 13, 1990 · 22m

After many failed attempts from his rodent subjects to find food, the Rat King learns of an abandoned canister of mutagen lost in the sewers and claims it for himself.

E21. Funny, They Shrunk Michaelangelo

Oct 13, 1990 · 22m

While Michaelangelo is testing out a sailboard in the sewers he accidentally gets swept out into the city harbor.

E22. The Big Zipp Attack

Oct 20, 1990 · 22m

Krang sends Shredder, Bebop and Rocksteady to find Rigidium to repair the Technodrome. A meteorite lands containing a large egg. The egg hatches, revealing a Zipp, a cute little creature that begins to eat the Technodrome.

E23. Donatello Makes Time

Oct 20, 1990 · 22m

Professor Lloyd Cycloyd, a crazy scientist who escaped from an institution, accidentally discovers the Turtles' lair. He sees Donatello testing out one of his new inventions, a time stopper.

E24. Farewell, Lotus Blossum

Oct 27, 1990 · 22m

While on their way to a movie, the Turtles rescue the Urn of Chakahachi from two thieves. The thieves pry off a pearl from the Urn before the Turtles get their hands on it.

E25. Rebel Without a Fin

Oct 27, 1990 · 22m

Dr. Polidorius creates a half-man half-fish named Ray. The Doctor has Ray plant explosives in certain parts of the sewer so that he can sink the city beneath the ocean.

E26. Rhino-Man

Nov 3, 1990 · 22m

J. Gordon Hungerdunger, a Texas millionaire, is holding a best super-hero contest. The winner of the contest will receive the humongous Malaprop Diamond.

E27. Michaelangelo Meets Bugman

Nov 3, 1990 · 22m

Michaelangelo meets his favourite comic book hero after he saves a weakened Brick Bradley in the sewers, and then he and Bugman take on the evil Electrozapper together.

E28. Poor Little Rich Turtle

Nov 10, 1990 · 22m

Krang has come up with yet another brilliant plan to free the Technodrome. The evil alien sends Bebop and Rocksteady to kidnap Buffy Shellhammer, 15 year-old CEO of Shellhammer Chemicals.

E29. What's Michaelangelo Good For?

Nov 10, 1990 · 23m

The Turtles go along with Michaelangelo and his pet pigeon to the zoo so that Dr. Goodfellow can check the bird out.

E30. The Dimension X Story

Sep 8, 1990 · 23m

Disguised as humans, Rocksteady and Bebop are sent to attach special trans-dimensional thrusters to the Channel Six Building.