The SpongeBob SquarePants, My Little Pony: Equestria Girls, and Thomas and Friends Crossover Movie

The SpongeBob SquarePants, My Little Pony: Equestria Girls, and Thomas and Friends Crossover Movie is an upcoming Canadian-American-British 2D 3D computer animated comedy fantasy musical film, its the sequel to The SpongeBob SquarePants and My Little Pony: Equestria Girls Crossover Movie: The Search for Suri Polomare and Upper Crust

Plot
After Lady the Magical Engine gets kiddnapped by Plankton, SpongeBob, Patrick, Squidward, Stanley S. SquarePants, Thomas the Tank Engine, Percy the Green Engine, Twilight Sparkle from Equestria, Twilight "Sci-Twi" Sparkle, Pinkie Pie, Rainbow Dash, Fluttershy, Applejack, Rarity, Sunset Shimmer, Sour Sweet, Sugarcoat, Sunny Flare, Indigo Zap, and Lemon Zest must save Lady the Magical Engine before its too late.

Trivia

 * This film will mark the return of Lady the Magical Engine who last appeared in Thomas and the Magic Railroad and Thomas and Friends: Calling All Engines!