Mark Wells was a klutz but even he did not expect the acquisition of a new mirror would cause him to literally fall into a different world. Even if he had, becoming a green pegasus would have seemed the height of ridiculousness. Now, the former human has to learn how to be a pony even as he seeks a way back home. Maybe the Great and Powerful Princess Trixie can help him? Then again, it seems that she might need his help even more!

As time passes, Mark learns more about his new home, makes some special friends, and falls down. A lot. Along the way, magic shapes both him and events that shake the very nation. Is he destined to be Equestria's most unlikely new hero?