Twilight Sparkle is a prodigy at magic as her cutie mark would imply. When she is attempting one of Starswirl's forgotten spells she stumbles upon a poor soul in need of help. Leaping to action Twilight saves this soul. Sort of.
Zoe finds herself in a new world and new body after a fateful fall. With the scars of her past still haunting her dreams and many strange new things to try to adjust to she will have to learn to stand tall despite the growing pressures of a society that soon will be shook to its core.
This takes place shortly after the Canterlot Invasion. Many of the events of the show after that will not come to pass but some will though I have no intention of recapping any episode unless I am drastically changing it.