A human-turned-dragon finds herself in Ponyville... After spending a decade as a globetrotting adventurer. The only problem is that Ponyville is the very last place she wants to be, for a fact as plain as her appearance.
Princess Celestia, in her infinite wisdom, comes to the conclusion that she doesn't have nearly enough time to do everything on her busy schedule. Not a problem for her, though. The solution to having no time is obvious: just make some more.
An amnesiac Commander Shepard has been living and thriving in the Everfree Forest for several months. Saving the life of a passing pegasus sets a chain of events in motion that could change Equestria forever.