Editing Tino's Adventures of Teenage Mutant Ninja Turtles (section)

== Plot ==
In New York City, television reporter April O'Neil reports on a silent crime wave quickly enveloping the city. That night, April is attacked by a group of thieves, and is saved by an unseen group of vigilantes. April's rescuers, the Teenage Mutant Ninja Turtles—Leonardo, Donatello, Michelangelo, and Raphael—return to their hidden lair in the sewer, where their master, a rat named Splinter, advises them to continue practicing the art of ninjutsu. Raphael visits the surface and ends up in a fight with the brutal vigilante Casey Jones, who ultimately escapes. 

April continues investigating the crime wave, correctly theorizing it to be the work of the ninja Foot Clan; the Foot's leader, The Shredder, orders her to be silenced. A group of Foot attack April in the subway, although Raphael defeats them and carries the unconscious April back to the turtles' lair, unaware that one of the Foot is following him. Once April awakens, Splinter introduces himself and the turtles, explaining that they were once normal animals, before being mutated into intelligent, anthropomorphic creatures by a mysterious chemical and trained by Splinter in ninjutsu. After the turtles escort April home, they find their hideout ransacked and Splinter kidnapped. They return to April's apartment and spend the night there.

April's supervisor, Charles Pennington, visits April's apartment with his delinquent son, Danny. Danny glimpses the turtles hiding, and later runs away from home following an argument with his father. At the Foot's hideout, Shredder informs his followers of the turtles' threat, and Danny reports his findings.

Raphael argues with Leonardo over his leadership, and retreats to the roof of the apartment. The Foot arrive and beat Raphael unconscious, laying siege to the apartment. The apartment catches fire, and the turtles and April escape with help from Casey. Guilt-stricken, Danny seeks counsel from the imprisoned Splinter, and runs away from the Foot. The turtles retreat to an abandoned farm belonging to April's family, where Raphael recovers and April and Casey bond. Leonardo receives a vision of Splinter, and assembles the other turtles to contact him through astral projection. Splinter delivers his final lesson, inspiring the turtles to return to the city. 

The turtles return to their lair, finding Danny hiding there. While the turtles are sleeping, Danny returns to the Foot's hideout and meets with Splinter, followed by Casey. Splinter tells Danny the story of how, when he was still an ordinary rat, he learned ninjutsu from his former master, the ninja Hamato Yoshi. Fellow ninja Oroku Saki rivalled with Yoshi over the love of a woman, Tang Shen, who fled with Yoshi to New York to avoid conflict with Saki; however, Saki pursued and killed them. Shredder discovers Danny and realizes that the turtles have returned, ordering Splinter to be killed. Casey and Danny free Splinter and defeat Shredder's lieutenant Tatsu, before convincing the remaining Foot members of Shredder's manipulations. 

The turtles battle the Foot in their lair, repelling them onto the streets. Shredder arrives and confronts the turtles on a rooftop, overpowering them. As Shredder pins down Leonardo and prepares to kill him, Splinter appears, identifying Shredder as Oroku Saki; in turn, he recognizes Splinter as Yoshi's pet rat. Shredder charges at Splinter with a spear, only for Splinter to throw him over the roof with Michelangelo's dropped nunchaku; left dangling over the roof, Shredder makes one final effort to kill Splinter with a thrown dagger, which Splinter catches as he lets go of the nunchaku, and Shredder falls from the building and into a garbage truck; Casey then activates the truck's compactor to crush him. The police arrive to arrest the remaining Foot, and Danny reunites with his father. April and Casey share a kiss, while the turtles begin to celebrate their victory with Splinter.