archytele The Vault
Season guide

Teenage Mutant Ninja Turtles: Season 3

47 episodes Premiered Sep 25, 1989
Previously on Teenage Mutant Ninja Turtles

Season 3 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • Directly follows the overarching narrative developments of Teenage Mutant Ninja Turtles Season 2.
  • Faction dynamics and core character alliances shift under escalating external stakes.
  • Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • Sets up serialized story arcs that build directly toward the climactic season finale.
Season 3 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 3 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

94%
Mytharc (3): Crucial lore & season climaxes
Core (44): Character development & subplots
Side Quest (0): Standalone / filler
S3·E1 Mytharc

Beneath these Streets

Sep 25, 1989

The Turtles learn the cost of slacking off when Splinter is badly hurt during a confrontation with Shredder.

S3·E2 Core

Turtles On Trial

Sep 26, 1989

The intentions of the Ninja Turtles are put to the test when a controversial TV-figure portrays our heroes as menaces to society.

S3·E3 Core

Attack of the 50-Foot Irma

Sep 27, 1989

Irma accidentally becomes gigantic and her naturally clumsy nature makes her a danger to the city.

S3·E4 Core

The Maltese Hamster

Sep 28, 1989

Gangsters are swiping all the antiques in town. And when they swipe most of our heroes, it's up to Donatello and April to find out why. Could Shredder be behind this?

S3·E5 Core

Sky Turtles

Sep 29, 1989

The Turtles go flying when the Shredder invents a gravity-altering device.

S3·E6 Core

The Old Switcheroo

Oct 2, 1989

The personalities of Shredder and Splinter are switched when a device is accidentally activated during a battle between the Turtles and their enemies. As Shredder plans the Turtles

S3·E7 Core

Burne's Blues

Oct 3, 1989

In the middle of a summer heat wave, someone is destroying all the air conditioners and taking all the city's freon. In the meantime, Vernon and Burne go looking for the Turtles, b

S3·E8 Core

The Fifth Turtle

Oct 4, 1989

A 14-year-old boy tries his best to help out the Turtles, but with some not so optimal results.

S3·E9 Core

Enter: The Rat King

Oct 5, 1989

Thompson assigns April to research the growing rat infestation. She is pursued by an army of rats and escapes on a passing city bus.

S3·E10 Core

Turtles at the Earth's Core

Oct 6, 1989

Dinosaurs invade the Big Apple. Befriending a young diplodocus the Turtles trace the invading dinosaurs to their source finding a lost world.

S3·E11 Core

April Fool

Oct 9, 1989

Emperor Aleister of Malicuria comes to New York City, bringing along a shard of Lydium 90 to the USA.

S3·E12 Core

Attack of the Big MACC

Oct 10, 1989

A robot warrior arrives from 400 years in the future in 20th-Century New York.

S3·E13 Core

The Ninja Sword of Nowhere

Oct 11, 1989

Krang's computers detect an alien metal on the surface of the Earth. Krang sends Shredder, along with an Alien Metal Detector, to the surface to find it.

S3·E14 Core

20.000 Leaks Under the City

Oct 12, 1989

Still searching for a way to destroy the Turtles, Krang develops a super pump that he intends to use to flood the sewers.

S3·E15 Core

Take Me to Your Leader

Oct 13, 1989

Full of self doubt, Leonardo leaves the team. Michaelangelo, Raphael, and Donatello all take turns being leader as they try to figure out why the sun is getting smaller.

S3·E16 Core

Four Musketurtles

Oct 16, 1989

A bump on the head leaves Leonardo thinking that he is in 17th century France, and that he and his comrades are Musketeers.

S3·E17 Core

Turtles, Turtles Everywhere

Oct 17, 1989

Shredder programs the city's new garbage collecting super-computer to collect the Turtles. But when Shredder doesn't specify 'Ninja' Turtles, the super-computer collects them all!

S3·E18 Core

Cowabunga Shredhead

Oct 18, 1989

The Shredder thinks he's Michaelangelo after a computer malfunction.

S3·E20 Core

Camera Bugged

Oct 20, 1989

A visit to Earth from a Polarisoid results in havoc when Shredder comes into possession of the alien's camera, because it does more than just take pictures.

S3·E21 Core

Green with Jealousy

Oct 23, 1989

Krang sets his sights on a powerful Nuclear-Powered Submarine, believing it's fuel will be more than enough to power the technodrome.

S3·E22 Core

Return of the Fly

Oct 24, 1989

Baxter Stockman returns for revenge against the Turtles and Shredder, while our heroes attempt to stop Shredder's plan to siphon water from an underground reservoir.

S3·E23 Core

Casey Jones: Outlaw Hero

Oct 25, 1989

An eager vigilante is causing a stir in the city, while Krang and Shredder take control of all the machines in the city. Maybe this new 'hero' can help the Turtles.

S3·E24 Core

Mutagen Monster

Oct 26, 1989

In an attempt to hijack two separate trains carrying the ingredients needed to make mutagen, Rocksteady and Bebop cause their head-on collision, resulting in the spillage of both c

S3·E25 Core

Corporate Raiders from Dimension X

Oct 27, 1989

High ranking corporate executives are kidnapped by men in business suits. The Turtles don't get involved until they learn that one of these corporations is the world's largest supp

S3·E26 Core

Pizza by the Shred

Oct 30, 1989

Michaelangelo gets a job as a pizza delivery boy. But who's his new boss?

S3·E28 Core

Beware the Lotus

Nov 1, 1989

A skilled, and lovely, ninja warrior is hired by Krang to defeat the Turtles. Shredder's replaced, Leonardo's met his match.

S3·E29 Core

Blast from the Past

Nov 2, 1989

Splinter suffers amnesia as the Turtles try to remind him that he is the true leader of the Foot Clan.

S3·E30 Core

Leatherhead: Terror of the Swamp

Nov 3, 1989

While Raphael is reliving the past, via the Turtles' photo album, their frog friends in the Florida Swamps are being terrorized by a mutant alligator known as Leatherhead.

S3·E31 Core

Michaelangelo's Birthday

Nov 6, 1989

It's Michaelangelo's birthday, but none of his brothers seem to remember, and it frustrates him greatly.

S3·E32 Core

Usagi Yojimbo

Nov 7, 1989

A rabbit ronin warrior from an alternate dimension is lost in our world. While the Turtles help him adjust, Shredder steals a dragon egg to unleash it on the city.

S3·E33 Core

Case of the Hot Kimono

Nov 8, 1989

Someone is stealing all the kimonos in the city. After Master Splinter's favorite kimono is stolen, April's famous detective aunt helps the Turtles retrieve it.

S3·E34 Core

Usagi Come Home

Nov 9, 1989

Shredder tricks Usagi Yojimbo into battling the Turtles.

S3·E35 Core

The Making of Metalhead

Nov 10, 1989

While the Turtles are suffering from turtle pox, a disease that affects only mutant Turtles, Krang has developed a robotic turtle that he calls Metalhead.

S3·E36 Core

Leatherhead Meets the Rat King

Nov 13, 1989

Leatherhead has come to the city searching for the Turtles. While crawling through the sewers he encounters the Rat King who charges him with trespassing.

S3·E37 Core

The Turtle Terminator

Nov 14, 1989

Irma is kidnapped by Bebop and Rocksteady and is replaced by a robot that looks just like her that is programmed to eliminate the turtles.

S3·E38 Core

The Great Boldini

Nov 15, 1989

The Turtles must clear their names when they are believed to be jewel thieves who stole a priceless emerald during a magic act run by a wizard named Boldini.

S3·E39 Core

The Missing Map

Nov 16, 1989

Zach and his brother Walt visit the Turtles. As they leave, Walt takes a map that could guide Shredder to the lair if it happens to fall into the wrong hands.

S3·E40 Core

The Gang's All Here

Nov 17, 1989

Shredder tries to trick the Turtles into eating cookies made with anti-mutagen. Michaelangelo, wanting to be a human, tries one of the cookies and it mutates him into a teenager.

S3·E41 Core

The Grybyx

Nov 20, 1989

Kala's pet Grybyx, which has a really bad temper whenever it gets hungry, escapes from Dimension X through a portal to Earth, causing trouble for the Turtles.

S3·E42 Core

Mister Ogg Goes to Town

Nov 21, 1989

While searching for a device to transform crude oil into liquid hydrogen, Krang accidentally brings Mr. Ogg from Dimension Z to earth.

S3·E43 Core

Shredderville

Nov 22, 1989

The Turtles are frustrated that they let Shredder slip away from them again. They feel like giving up, and wish they had never been born.

S3·E44 Core

Bye Bye Fly

Nov 23, 1989

An interdimensional alien spacecraft leads Baxter Stockman to his latest vengeful plot to destroy the Turtles and Shredder.

S3·E45 Core

The Big Rip Off

Nov 24, 1989

After several failed attempts to get the Technodrome re-energized, Shredder and Krang run one last-ditch distraction for the Turtles at Fort Charles while Bebop and Rocksteady stea

S3·E46 Mytharc

The Big Break In

Nov 27, 1989

The Technodrome is up and running again, and it is up to the Turtles to hinder Shredder and Krang from getting to the surface.

S3·E47 Mytharc

The Big Blow Out

Nov 28, 1989

After several setbacks, Shredder and Krang steal all of New York's electricity and charge it into a giant transdimensional gateway, designed to send Earth into Dimension X. The Tur