By some mistake instead of being stuck on a Mushroom Planet. Dr. Robotnik is instead sent to Equestria, Were he takes over the Storm Kings army and uses it to find his way back to earth and gain ultimate power and taking over this new world!
Twilight Sparkle, along with her five closest friends, her family, the Cutie Mark Crusaders, and two of her Mobian friends accidentally end up back in the past, the time where their Mobian friends originally came from.
After the incident in the Starfall Islands, the Mobians and the Mane 6 decides to track down and stop Dr. Eggman and Opaline before they can take over their worlds.
In search of the missing Chaos Emeralds, Sonic becomes stranded on an island teeming with unusual creatures as he tries to rescue his friends from powerful forces known as the Titans.
Spike awakens on the Starfall Islands after being sucked into an ancient device, He meets Sonic the hedgehog and they go on an adventure to save Sonic's friends.
By some mistake instead of being stuck on a Mushroom Planet. Dr. Robotnik is instead sent to Equestria, Were he takes over the Storm Kings army and uses it to find his way back to earth and gain ultimate power and taking over this new world!
After the two groups meet up due to circumstances, Sonic and the Equestria Girls must team up to defeat an evil genius, who wants to use his power for world domination, while on the run from the government lead by a special agent.
Scootaloo finds a mysterious ruby with the power to manipulate reality. She will have to learn to use its power to save Equestria from a mad scientist from another dimension.
Sonic, Shadow, and Silver have been sent to the human world of Canterlot High, to save it from the eternal darkness. Along the way, they will make new friends, meet old and new enemies, and much more.
In an effort to rid himself of his mortal enemy, Dr. Eggman flings Sonic into another dimension. Stranded, alone, and with no apparent way home, can he survive this strange new world? What adventures await him? Come along and find out.