Beneath the city streets, deep in the bowels of the sewer system, Splinter is less than pleased with the Turtles when he encounters them lounging around the TV rather than practicing their daily katas.

The Turtles can't understand why people would hate them. April has her make-up department make human masks so the Turtles could move more freely in the streets.

While preparing for Irma's birthday party, Michelangelo realizes he has forgotten to invite the guest of honor. He contacts April, who is in the midst of interviewing Professor Von Zifflein about the discovery of a meteorite that just crashed in the area.

The Turtles, wearing their trench coats and fedoras, investigate a wave of mob terror.

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

The nightwatchman at Cybertech Laboratories spotted some weird character hanging around. Mr. Thompson is convinced that he must be a friend of the Turtles.

In the middle of a summer heat wave the Turtles cool down by having pizza at Plink's.

Dressed in their human disguises, Donatello and Raphael venture out of their lair to buy supplies to make pizza.

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

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

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

The Turtles are watching April's special report, live from the Army testing laboratory, on the first public display of a new super laser when a bolt of lightning from an electrical storm overloads the Super Laser's computer.

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.

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

After awaking from a nightmare in which he failed himself and his comrades in a battle against Shredder, Leonardo feels that he is unfit as a leader and, donning civilian clothes, decides to leave the lair.

At the local Mardi Gras parade April suggests that the Turtles should dress in costume.

April covers the launch of a new system developed by the city to help clean up the city's garbage problems faster than ever.

The Turtles use hypnosis to persuade Michelangelo to stop craving pizza.

The Turtles throw April a surprise party to celebrate her first anniversary as a reporter at Channel Six News, but April is not feeling very celebratory. Burne Thompson has suggested that she will not be celebrating her second anniversary if she does not find a story soon.

A Polarisoid arrives on Earth taking photos of everything and everything he takes a photo of disappears.

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

Noticing that the Technodrome's ballast tanks are low, Krang decides to take the Technodrome closer to the surface so that it can siphon off water from an underground reservoir. Meanwhile, Donatello has built a device that will track the Technodrome's movements.

A self-appointed vigilante, wearing a hockey mask and named Casey Jones, is striking fear in the hearts of the city's criminals.

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 chemicals in the city's train yard.

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 suppliers of pizza.

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

Shredder orders Rocksteady and Bebop to place the mesmerizer atop the Channel Six News Building Tower.

Krang hires a female Ninja, Lotus, to replace Shredder. Lotus has agreed to help Krang locate the Turtles in exchange for 100 pounds of gold.

Krang and Shredder have been defeated once too often by the Turtles. Shredder takes Rocksteady and Bebop up to the Earth's surface and to the Asian-American Cultural Center where the burial urn of an ancient noble warrior and founder of the Foot Clan, Shibana-Sama, is on display.

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.

Today is Michaelangelo's birthday and the other turtles plan a surprise party.

Thanks to a run-in with General Traag from Dimension X, the Turtles discover that Krang is experimenting with his dimensional portal again.

In an effort to rid himself of the Turtles, Shredder with the help of Rocksteady and Bebop kidnap Obento, caretaker of the Far East Animal Society then blackmail Usagi Yojimbo into destroying the Turtles.

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.

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.

Rocksteady and Bebop, on Shredder's orders, kidnap Irma. As soon as April discovers Irma has been abducted, she contacts the Turtles.

The Turtles, Zach and his friend Caitlin visit the Museum where a magician, the Great Boldini, intends to make a valuable emerald disappear.

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.

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

An affectionate, cuddly creature from another world shows up on Earth, with the ability to move objects by mental power. It turns out to be an escaped pet of the Neutrinos.

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

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.

A team of archaeologists stumble upon a temple of unknown origin buried near the Turtles' lair. Before they can investigate further, they are frightened off by Baxter Fly, who explores the temple himself.

In a last ditch attempt to gain power for the Technodrome, Krang Sends Rocksteady and Bebop to steal a newly created set of energy modules from a hi-tech science lab located at Fort Charles.

Now successfully re-energized, The Technodrome begins moving towards the surface. Krang sends for a miniaturizer from Dimension X. With it he can shrink anyone and anything that stands in his path.

The Technodrome suddenly surfaces. The Turtles barely get out of its way in time before Shredder begins firing lasers