Thomas' Adventures of My Little Pony Friendship is Magic - To Where and Back Again (Full Movie) is another upcoming Thomas & Friends/My Little Pony Friendship is Magic crossover film to be created by 76859Thomas. It will appear on Google Drive or Dropbox as part of the triple header with Thomas' Adventures of My Little Pony Friendship is Magic - The Times They Are a Changeling and Thomas' Adventures of My Little Pony Friendship is Magic - Celestial Advice in the near future.
Starlight is invited to attend a festival at her former village. Remembering her act of removing the villagers' cutie marks, Starlight fears they have not fully forgiven her, so she brings Trixie, Thomas and the others to accompany her. The villagers happily put Starlight in charge of the festivities, but she feels overwhelmed by the idea of leadership and flees. She, Trixie, Thomas and the others return to Ponyville to find Twilight and her friends being strangely dismissive of Starlight's misfortune at the village, despite earlier showing their support. That night, Princess Luna alerts Starlight in a dream that the changelings have replaced herself and all of Equestria's protectors, including Twilight and her friends, in their plan to conquer Equestria; Thorax also approaches to warn Starlight and Trixie of his kind's occupation of the Crystal Empire. Discord, the ponies' last remaining powerful ally in Equestria, transports himself, Starlight, Trixie and Thorax to the changelings' kingdom, where their friends are being held. Starlight, Trixie, Thorax and Discord mount a rescue of their friends from the Changeling Kingdom, where their magic is negated by the power of Queen Chrysalis' enchanted throne. The others turn to Starlight to lead them; though hesitant, Starlight manages to direct the others in misguiding the changeling drones they encounter. When Discord is caught in a trap of Fluttershy impersonators, Trixie sacrifices herself to his impostor so Starlight and Thorax can find and destroy Chrysalis' throne. Thorax attempts to distract Chrysalis by disguising himself as Starlight, but Chrysalis sees through his deception and begins forcefully draining the love he has accumulated from the Crystal Empire. Encouraged by Starlight, Thorax willingly gives Chrysalis his love, causing a powerful burst of magic that metamorphoses him into a new, benevolent form. His transformation inspires the other changelings to do the same, destroying the throne and freeing all of Starlight's captured friends. Rejecting Starlight's offer for redemption, Chrysalis vows revenge and flees. Thorax becomes the hive's new leader while Starlight returns to her village's festival with her friends.
- Annoying Orange, Pear, Apple, Passion Fruit, Midget Apple, Marshmallow, Grapefruit, Grandpa Lemon, Nerville, Princess Sapphire, Choppy, Prince Frank, Ash Ketchum, Pikachu, Misty, Togepi, Brock, Sora, Riku, Kairi, Mickey Mouse, Pluto, Donald Duck, Goofy, Mushu, Cri-Kee, Wreck-It Ralph, Vanellope von Schweetz, Fix-it Felix, Jr., Princess Anna, Elsa the Snow Queen, Olaf, Kristoff, Sven and The Rough Gang are guest starring in this film.