An incident with the Chaos Emeralds sends Sonic and friends to Equestria. Twilight and friends meet the Mobians and try to find all 7 Chaos Emeralds so they can send Team Sonic home. This proves to be difficult as Eggman teams up with the now chaos-supercharged Tirek. As their quest plays out, a bigger revelation emerges. The emeralds, elements and worlds...are somehow connected.