As far back as she could remember, Starchaser had marveled at the beauty of the night sky. The sight of those countless twinkling lights, and the gentle moon above, would help her find peace even in the darkest days of her youth. Then one day she met somepony who not only saved her life, but changed it's course forever. A princess who's passion, beauty, and bravery made her the equal of any starlit sky. On that day the young filly swore an oath! She would repay her debt no mater the cost, and serve as a protector of all she holds dear. Her friends, her nation, and her princess of the night! Carpe noctem!

The CMCs are at it again. In an attempt to gain their cutie marks, our three protagonists discover an ancient tome in Twilight's library and use a spell promising to deliver them an "adventure beyond imagination." However, things do not go as planned, and the three young fillies find themselves awakening in a world far different from the beautiful land of Equestria. Now transformed and confused, the ponies must find each other and, hopefully, a way to return home. Yet when an evil arises that threatens not only this new world, but also their own home, will the CMC be able to protect those they care for most?

Cutie Mark Dimensional Crusaders, move out!

Rainbow Dash, Twilight Sparkle, and Applejack are enjoying a peaceful day in Ponyville. However, all sense of tranquility is shattered when Twilight receives an urgent summons from Luna. Princess Celestia has been attacked while investigating a strange fog that has appeared around the mining village of Manestown! Now it is up to Rainbow Dash and her five best friends to discover who is responsible. Armed with the Elements of Harmony, the six champions of Equestria are prepared to face any danger. However, they soon find themselves in a confrontation unlike any they have ever known. Friendship may be the greatest power known to pony-kind, but is it truly enough to drive away Fear?

Facing Fear will be the first arc of a much larger story.