Air date: 12/8/89

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. However, things seem a bit wrong as whenever the word "turtle" is said it instantly "zaps" whatever causes the word to be said with a laser. Meanwhile, the turtles try to rescue Irma from the Shredder's clutches.

The Great Boldini

Air date: 12/11/89

Zach, Caitlin, April and the turtles attend the magic performance of the Great Boldini in the museum where the Turtelli emerald is being held on display. But when the emerald suddenly disappears and the great Boldini is bound and claiming that someone stole the gem, the turtles are framed for the theft. Zach and Caitlin find out that it was really the Boldini and Don Turtelli that committed the crime. The Rat King soon gets involved when its revealed that the escape route Turtelli dug into the sewers strayed into his domain.

The Missing Map

Air date: 12/12/89

Zach's big brother, Walt, steals a rare pouch containing the only map to the Turtles' lair.

The Gang's All Here

Air date: 12/13/89

Bebop and Rocksteady put on an act to get the turtles to eat cookies; But not any ordinary cookies, but cookies that could turn them into humans! Michelangelo eats one, tempted to find out what being a human is like, and becomes one. Though, the effects wears off from time to time, but still kicks in. Meanwhile, the turtles search for him with an antidote while the two mutant goons of the Shredder find assistance of their old gang to rob a ship. And during it all, April attempts to "join" the gang to get a story for Burne.

The Grybyx

Air date: 12/14/89

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.

Mr. Ogg Goes to Town

Air date: 12/15/89

An impish alien comedian from Dimension Z (who has mannerisms similar to Pee Wee Herman), escapes to Earth to cause big trouble for the TMNT.

Shredderville

Air date: 12/18/89

The Turtles have entered an alternate universe in which they had never existed and The Shredder rules the city as Emperor.

Bye, Bye Fly

Air date: 12/19/89

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

The Big Rip-Off

Air date: 12/20/89

Bebop and Rocksteady fail to get an energy source to power up the Technodrome due to intervention by the turtles. To prevent this from happening again, Shredder comes up with an idea to acquire an energy source by using Fort Charles as a diversion to get the turtles to believe that they were after the rare and powerful crystal being guarded there. And to even further focus their attention on the facility, April gets trapped in the air-tight safe where the crystal is held with only little time before suffocating. All while this is going on Bebop and Rocksteady are sent to rob a Missile Plant of several power packs and the Technodrome is teetering off the edge of a rock structure over lava.

The Big Break-In

Air date: 12/21/89

Shredder and Krang are successful in getting the Technodrome running on full power once again. This includes the Pandimentional Portal, which they use to get a device of Krang's "own design", called the Minimizer: A device designed to shrink objects of a large scale. The Minimizer is used to shrink the armies of the world so there would be little resistance when they arrived at the surface. Meanwhile, the turtles plot on getting inside the Technodrome to stop them from getting to the surface.

The Big Blow Out

Air date: 12/22/89

The turtles thought the Technodrome, along with Krang and Shredder were gone; Before it came right back up out of the earth and ambushed them with rockets. While the turtles and Master Splinter are trying to find out what Shredder and Krang up to, they quickly discover that their enemies are after the antenna at Mount Rushmore: An antenna that could suck the world of all its energy. Though, they don't find out Krang's true intentions until he uses the city's highest sky-scraper, the World Trade Building, to open a giant trans-dimensional portal to Dimension X.

Plan 6 from Outer Space

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.