After a majority of ponies die, only a few remain. There was a war and it made it so harmony no long excisted. The only way to bring the land back to what it was and make Equestria whole, is for harmony to rule most of the ponies remaining.
Could it really be true? Has the sweetest pony in Ponyville commited the crime of murder. When Rarity is found dead, a pink hair is found in the crime scene, and now Fluttershy has been acused as the murderer.