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.