It is a special day in Canterlot as the mane 6 along with Starlight glimmer celiberate Princess Celestia's birthday but when an evil pony comes and captures all of the princesses it's up to Starlight to make the most important decision of her life
It's been two years since Sonic and Shadow have been to Equestria and now they are on their way back to see their new friends but an old enamy awaits their return
