[Original TMNT Cartoon Fan]

Mid-June 1987 AD: While investigating a series of crimes, Channel 6 news-reporter is chased by a street gang through the Manhattan Island sewers and is rescued by four mutant turtles. She teams up with them, and after learning Oroku Saki is in the USA, they together defeat Shredder, Krang, Bebop and Rocksteady by sending the Technodrome, with them inside, through the portal from Earth to Dimension X there it lands on a rocky planet. Baxter Stockman is left to the authorities.

Inside the Technodrome are also Bebop and Rocksteady's faction of the street gang deployed by Shredder, who has mutated the punks. Meanwhile Lugnut's faction, with no mutated members, end up on Earth.

Circa 1987-1988 AD: An expedition through Japan led by April's aunt Agatha Marbles digs up the treasure of Nakamura.

Mid-1988 AD: Irma is employed as Channel 6 secretary.

Mid-1988 AD: Shredder returns to Earth, and after a series of misadventures Baxter Stockman, who has been freed by Shredder is sent to the Technodrome in Dimension X, and turned into a fly. Bebop and Rocksteady return to Earth. Shredder, Krang, Bebop and Rocksteady later return the Technodrome to Earth, using the Niagara Falls hydroelectric power station to open a portal. They succeed but the turtles come into the Technodrome and cause it to burrow towards near the lava at the Earth's core. However, late Shredder returns.

June 1988 AD: April celebrates her first anniversary at Channel 6, and Donatello as well as Rocksteady end up zapped by extrateresstrials ito their spacecraft.

July 1988 or 1989?: Shredder, Krang, Bebop and Rocksteady temporary shrink the Sun.

Early-1989 AD: An Impervium diamond is discovered in the Minas Gerais mining districts of Brazil and taken to the Pfeiffer's Jewels shop on the Manhattan Island for Mardi Gras in New York City for the carnival season.

Early-1989 AD: Lydium 90 is discovered in the mines of Malicuria.

Mid-1989 AD: Shredder, Krang, Bebop and Rocksteady return the Technodrome to the surface of the Earth, but the turtles send it to Dimension X. There it crashes onto a giant round orbital space station, and then the Volcanic Asteroid.

Circa-mid 1989-mid 1990: Shredder, Krang, Bebop and Rocksteady plot revenge, and attempt to send Channel 6 to Dimension X. The turtles win a visit to Europe.

May 1990 AD: Donatello earns a degree during the spring-cleaning season.

July 1990-circa March 1991 AD: The turtles and Splinter visit Europe. First thinking they will ride luxurious liner-ship Paradiso, the turtles instead end up travelling across the North Atlantic Ocean-waters inside the small ship Maude, with the turtles suffering from seasickness. Splinter doesn't. A cargo ship carries the Turtlevan and Turtleblimp in giant boxes onboard.

March 1991 AD: During Easter, the turtles team up with the Easter Bunny from a fairytale reality, and time-travel to the future year of 11 November 2036 AD. The Easter Bunny is later returned to his reality.

Mid-1991 AD: Shredder, Krang, Bebop and Rocksteady send the Technodrome from the Volcanic Asteroid to Earth when the turtles and Splinter together with Shredder's brother Kazuo Saki, Tokyo policeman, defeat them and trap the Technodrome in the Arctic.

August 1991 AD: Big Louie steals anti-freeze for Shredder in exchange for the "Star of Hoboken" diamond.

Mid-1992 AD: Krang attempts to free the Technodrome from the Arctic using an artificial satellite's laser, but instead it breaks the ice sending the Technodrome to the Arctic Sea bottom.

31 October 1992 AD: After getting zapped from a ray, Irma gets temporary superhuman abilities for some hours during Halloween.

Mid-1993 AD: Shredder, Krang, Bebop and Rocksteady return the Technodrome to the Manhattan Island before the turtles and Splinter stop them and send the Technodrome to Dimension X, while Shredder, Krang, Bebop and Rocksteady remain on Earth.

Mid-1994 AD: Car thief Otto Wrecker disappears mysteriously.

September-October 1994 AD: On Earth, Shredder, Krang, Bebop and Rocksteady use the 1964–1965 world exposition New York Hall of Science as their new base. Shredder, Krang, Bebop and Rocksteady later get portal access to the Technodrome on Balaraphon, where the Technodrome has ended up after crossing through Dimension X between asteroids and into a black hole, before ending up on Balaraphon. The turtles follow them to Balaraphon and destroy the Technodrome main-engines before returning to Earth.

Mid-1995 AD: The turtles team up with Carter, and both the turtles and Carter undergo unstable mutations. Extraterrestrial warlord Dregg, using his Dreggnaut spacecraft, attacks Earth.

Circa March-April 1996: Following his unstable, mutation, Leonardo wreaks havoc inside the Metropolitan Stadium ice rink in the middle of an icehockey playoff series during a Mighty Clucks homegame.

Mid-1996 AD: After leaving Channel 6 and a time as freelancer, April works for Newspan. Dregg returns Krang and Shredder to Earth, where they remain. Carter goes to the future with Landor and Merrick for mutation reserving. Dregg returns to Earth, and the turtles go through Donatello's portal to the Technodrome on Balaraphon and return the robot earlier used by Krang to Earth. Using Krang's robot, the turtles fight Dregg before sending him through the portal from Earth before it closes. Splinter then tells the turtles they're no longer his students, but equals.