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

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

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

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?

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

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' demise and Splinter plans on how to get back to his body, everyone else is clueless.

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, but find something else.

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

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.

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

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.

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.

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

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! Turtles of the city of every shape and size are not safe.

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

Aliens abduct Donatello and Rocksteady.

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.

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

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.

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.

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.