Leonardo, Raphael, Donatello and Michelangelo shell out some turtle-powered Christmas spirit.

Turtles Forever is a made-for-tv animated movie. Produced in celebration of the 25th anniversary of the Teenage Mutant Ninja Turtles franchise, the movie teams up different incarnations of the titular heroes—chiefly the light-hearted, child-friendly characters from the 1987 animated series and the darker cast of the 4Kids' own 2003 animated series—in an adventure that spans multiple universes.

A teenager named Tom, whose friend Kaz constantly tells him of his adventures in Chaotic. Tom, who believes that Chaotic is only a card game, thinks that Kaz is making things up, until he entered a password he received from the game, transporting him to the world of Chaotic.

After the conclusion of the Battle City Tournament, deep below the sands of Egypt, an ancient evil has awakened. Anubis, who was defeated centuries ago by Yugi’s mysterious alter ego – the ancient Pharaoh – has returned for revenge. Wielding the power of the Eighth Millennium Item, Anubis is determined to destroy Yugi and take over the world.

In this special, a myterious evildoer is fed up with the bad guys losing to the good guys all the time. He steals the broadcast codes of the Fox Box and breaks it before giving each piece to the likes of "Kirby: Right Back at Ya's" King Dedede, DMP member Dialbolic from "Ultimate Muscle," "Cubix's" Dr. K, Dr. Eggman from "Sonic X," and The Shredder from "Teenage Mutant Ninja Turtles." The Funky Cops overhear this plot and set out to stop them. The Turtle see a preview of "The Shaman King" before setting out to find parts of the code. They are joined by Cubix, Kid Muscle, Kirby, and Sonic the Hedgehog. Can the good guys along with 1,000,000 viewers watching this special stop the bad guys and save their Saturday Morning block? Or will the villains be victorious for once? Well, how much do you want to bet on any side?

Leonardo, Raphael, Michaelangelo and Donatello must save New York City from the evil crime lord Shredder and his assistant, Baxter Stockman. The Turtles must fight foot soldiers, mice, and gangs and get help from their sensei Splinter, her friend April O'Neil, and her partner Casey Jones in an action-packed new series.