Crime in New Mare City as been going on for years and the police are powerless to stop it. However, Rarity Belle of the news is not the one to sit back and let it happen. She try's to get the police to the find the clan know as "The Changelings" but they won't do it and ignore her. Then one night her life change after she was rescue by four ponies that fight like Ninjas. Meet Rainbow Dash, Applejack, Twilight Sparkle, and Pinkie Pie, The Teenage Mutant Ninja Ponies!

Rainbow Dash as Leo
Applejack as Raph
Twilight as Donnie
Pinkie Pie as Mikey
Princess Celestia as Master Splinter
Rarity as April
Spike as Casey
Chrysalis as The Shredder
The Changelings as The Foot Clan

Rarity, Spike, Chrysalis, and The Changelings are humans, as Rainbow Dash, Applejack, Twilight, Pinkie Pie, and Princess Celestia are in their ponies forms. Base off of the 1990 Teenage Mutant Ninja Turtles Movie.