Air date: 10/19/89
The Turtles learn the cost of slacking off when Splinter is badly hurt in a confrontation with Shredder.
Turtles on Trial
Air date: 10/20/89
The intentions of the Ninja Turtles are put to the test when a controversial TV-figure portrays our heroes as menaces to society. The Turtles forego publicly clearing their name to defeat Krang and his new robotic weapon.
Attack of the 50 Foot Irma
Air date: 10/23/89
Irma accidentally becomes gigantic and her naturally clumsy nature makes her a danger to the city. The Turtles and April hide her and search for her cure.
The Maltese Hamster
Air date: 10/24/89
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. Is Shredder behind this?
Sky Turtles
Air date: 10/25/89
The Turtles go flying when the Shredder invents a gravity-altering device.
The Old Switcheroo
Air date: 10/26/89
Splinter's and Shredder's personalities are switched when a device is accidentally activated during a battle between the turtles and Bebop and Rocksteady. Shredder plans the turtles demise and Splinter plans on how to get back to his body while everyone else is clueless.
Burne's Blues
Air date: 10/27/89
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.
The Fifth Turtle
Air date: 10/30/89
A 14-year-old tries his best to help out the Turtles, but with some not so optimal results. In the end, he proves himself to be a great asset to the Turtle team.
Enter the Rat King
Air date: 10/31/89
A mysterious, sewer-dwelling man has an unnatural ability to put rats under his control. Can Splinter resist, or will he destroy the Turtles at the bidding of the Rat King?
Turtles at the Earth's Core
Air date: 11/1/89
After witnessing a live dinosaur wander in the city and disappear abruptly, the turtles follow its tracks. What they find in the large hole where it entered is a shocking revelation: The era in which the dinosaurs roamed the earth. Shredder and his mutant goons, Bebop and Rocksteady are there to collect a crystal needed by Krang to recharge the power cells of the Technodrome.
April's Fool
Air date: 11/2/89
The Malicurian Emperor comes to New York, bringing along a shard of Lydium 90. In order to get the mineral to fuel the Technodrome, Shredder invades the costume party thrown by the Malicurian Embassy to kidnap the princess - but they end up capturing April in a fancy dress.
Attack of Big MACC
Air date: 11/3/89
A robot warrior from 300 years in the future gets trapped in modern-day New York. He befriends the Turtles, but Shredder and Krang want him to come to their side, at any means necessary.