Scarlet Ray wakes up one day in the Everfree forest to find that she can't move and cannot recall much more than her name. She loses consciousness and re-awakens in the hospital to find that there was a burning sensation on her hoof; a "3" was branded on her hoof. In all confusion, she desperately searches for answers, coming along them bit by bit with the help of her friends; the Mane 6. Only with the help of them can Scarlet remember her true self and rediscover her past; the past that will haunt her forever.