Rainbow Dash is a pony who knows that aliens don't exist. After Spike told her of a abduction story of a pony she think it was made up. But when night falls and Dash is on the way home from Wonderbolt practice a strange light catches her and is abducted by us! Humans! Also Shining and Twilight are captured too.

But later on they discovers that they are being treated with care and also the humans are kind, caring, and brave as they find out they are on Earth. They soon become friends with the Human race and plan to make Earth's first peaceful contact with Terra. But little did they know those plans for peace are derailed when that a certain egg shaped evil mad scientist from a another dimension plans to take over the Earth! And with appearance of strange animal like creatures with elemental abilities.

But help comes in the form of a certain turned Pegasus blue hero with a get it done attitude and the love for speed! Also Dash's friends along with Well Dash your about to get a whole new adventure that 2 worlds are about to get epic! Team up with the Fastest Thing Alive from a another dimension. Also find and retrieve 7 powerful Emeralds from this other dimension. The rest of your friends back home aren't going to believe this! So get ready as Sonic The Hedgehog and Rainbow Dash meet for the first time and their friends unite to stop Dr.Eggman and his robots from finding the 7 Chaos Emeralds and taking over not only Earth, but Terra and the Pokémon World! Also encounter Pokémon along ones that were never seen before and a shock about Earth being the resting place of ten powerful legendary Dragon Pokémon with unimaginable attacks and abilities.

Takes place after Season 8 of MLPFiM.

Takes place in the Sonic X universe after Sonic X Season 3, Sonic Rush, Sonic Rush Adventure, Sonic Heroes, Sonic Rivals, Sonic Rivals 2, Sonic Unleashed, Sonic Riders, and Sonic Riders Zero Gravity.

Takes place after the Sun & Moon Saga of the Pokémon Tv show.

All Sonic characters have their Sonic X voices except Orbot and Cubot who have their present voices.

All Pokémon characters from the TV have their English dubbed 4kids era voices except the characters that appeared from season 10 to Season 21 and are in the Diamond & Pearl style animation.

Also fan-made Pokémon will appear in this as well info my own Fan-made Pokémon from the Rital Region. Along with fan-made moves. Including the Real Pokémon from all seven discovered regions.

The rest of fan-made Pokemon that will appear in this story belong to DeviantArt users Dilago, GregAndrade, zerudez, LuisBrain, Jesgrad07, Adamfegarido, and Steveo126 so get them a lot of credit for making these awesome Pokémon.

MLPFIM is owned by Hasbro.

Sonic The Hedgehog is owned by Sega.

Pokémon is owned by the Pokémon Company and Nintendo.

All the fan-made Pokémon except the ones that are from the Rital Region belong to the Davantart users mentioned earlier.

This story has a 'Dark' Tag.