A young unicorn named Nightwatch and his little adoptive dragon sister Buttercream long to see Nightmare Moon defeated and Princess Luna return. They venture out to Everfree to witness this but run into some trouble along the way.
While Flurry Heart and her friends are vacationing in Southern Equestria, they meet Somnambula who is studying clues leading to a mysterious temple where she finds an old friend.
Tired of her boring life in the Crystal Empire, Flurry Heart is called to Ponyville. She quickly finds herself thrust into adventure as the townsfolk are threatened by a red, horned monster.