A jewel that had long been hidden within the depths of the Castle of the Two Sisters, has been recovered by Twilight and Starlight because of their eagerness to study and learn all about it and the strange energies it gives off every now and again. While gathering the last of a few things to study the markings on the strange jewel, they unknowingly get a visit from Rainbow Dash who is then dragged into a strange world by the jewel. When Twilight and Starlight return to continue the studies, they soon learn of what has transpired in their absence. As the two of them gather all the help they can to try and bring Rainbow back into their world, Rainbow Dash soon learns that survival is much harder than Daring Do makes it out to be.