Super Sentai Series © Toei/Bandai. My Little Pony: FiM © Hasbro.
During a routine battle with the Zangyack, the Gokaigers get transported to Pony Ville. Each one of them being transported to the house of each one of the Mane 6.
The Mane 6 will have to help the Gokaigers get back to their world as soon as possible, before the Zangyack conquer it. (In the story title, I meant "Ponī Sentai Yūjōranger" to be like the Super Sentai version of "Mane 6" Yūjō means Friendship in Japanese & Ponī means, well... Pony.)
*And to clarify who is who for those who don't know or haven't seen any of the Kaizoku Sentai Gokaiger episodes:
-In the story Image there appears five people, from left to right: Ahim (Gokai Pink). Doc/Don (Gokai Green). Captain Marvelous (Gokai Red). Joe (Gokai Blue). Luka (Gokai Yellow) & Gai (Gokai Silver) (Even though he doesn't appear on the image, I'm sure you can look it up)