An unusual dream awakens two princesses. One, having already gone through many adventures and troubles, preparing herself for the worst. The other, having grown in her frozen world, prepares to flee and know the rest of Equestria. When a real meeting in the Crystal Empire takes the two to meet for the first time, and the floating ship of Captain Black Eye returns to Equestria, the two princesses are about to discover a secret about their lives and the Mane 6 and some friends will embark with their new friend in a new adventure for cold valleys and heat deserts, against pirate ponies to recover the mysterious Eye of the Dragon and the seven parts of the Diamond of Destiny, before it falling on the wrong hooves, to keep Equestria safe. Wecome to My Little Pony: Sisterhood is Magic