The Turtles (along with April, Casey, Karai and Shinigami) enlist the help of the Mighty Mutanimals to stop Bebop and Rocksteady.

The Turtles must train their '80s counterparts to face a greater threat than they've ever encountered while April and Casey seeks help from Karai and Shinigami to track down Bebop and Rocksteady and discover 80's Shredder and Krang's dangerous scheme to take over both 2012 and 1987 universes.

When the 1987 version of the Shredder and Krang appear in the 2012 Ninja Turtles' dimension, they employ the present Bebop and Rocksteady, and find their plans succeeding better than ever. Meanwhile, The 1987 versions of the Ninja Turtles seeks help from the present Ninja Turtles, April O'Neil and Casey Jones to stop both Krang and Shredder.

An episode featuring both Dracula and Frankenstein.

Savanti recruits Frankenstein's Monster and will soon unleash his creatures on the 21st Century.

Renet transports the team to Transylvania to stop Savanti Romero.

The Turtles' plans to enjoy Halloween are put on hold when strange monsters threaten to transform the city.

Still trapped in "the Pit", Raphael manages to defeat his two opponents and is hailed as leader of both tribes by the crowd. Aided by Mira, Mikey and Chompy, they flee in search of "the Green Paradise", but they end up having to deal with Leonardo, who ended up having his body undergo a second mutation and his mind scarred by the mutagen bomb, and is now the evil leader of the Wasteland, Maximus Kong.

Raphael, Donatello and Mira continue to be trapped by constant sandstorms throughout the desert, but are saved by none other than Chompy Picasso, whose physical self has grown considerably over the decades. On their way, they manage to find "the Holy Chalupa" who is, in truth, an elderly thinMichelangelohimself. He takes them to his home of pizza, where Ice Cream Kitty waits. While, the three Turtles are catching up and trying to accept the loss of their leader and eldest brother Leonardo, they are all attacked by Verminator Rex who abducts Mira but is followed by an angry Raphael.

In an alternate, apocalyptic future that takes place fifty years later, all humans and most of the mutant population have been wiped out, due to an extremely powerful mutant explosion that had mysteriously occurred through unknown means. Only a weatheredRaphael, who has most of his childhood memories lost to him, andDonatello(whose consciousness has been transferred intoMetalhead) have been traveling throughout the Impossible Wasteland trying to save alive while being pursued by the Verminator and his bikers. Befriending a female meerkat warrior named Mira, the last of her tribe, who harbors the secret to "Paradise" and that she must find a wise turtle called "the Holy Chalupa."

The turtles tell the back story behind their creation.

As they reach their destination, Usagi and the Turtles must help Kintaro fulfill his destiny.

Usagi leads the Turtles through a haunted forest, where they end up encountering mischievous and highly dangerous spirits.

The Turtles are transported to an alternate dimension, where they befriend the rabbit samurai and master swordsman: Miyamoto Usagi.

The Newtralizer returns to New York City more powerful than ever before and joins forces with a dangerous, yet unexpected ally. With the help of Mona Lisa, the Turtles fight back to defend their city.

The Turtles are transported to an alternate dimension, where they befriend the rabbit samurai and master swordsman: Miyamoto Usagi.

The Turtles must defeat Kavaxas and prevent him from destroying the world.

Donnie's grudge against Don Vizioso threatens the Turtles' mission

Karai searches for the Kuro Kabuto, claiming to be the rightful heir to the Foot Clan, when she encounters an old rival.

The Turtles believe they have defeated their old enemies, but they soon discover a new evil is rising.