When an ancient enemy of Equestria makes it's presence known, it is up to the elements of harmony to stop them. But things are never so simple as that.
I could have saved her. I could have saved my friends. I could have saved ponies. But instead, I kept hush. And I don't know how I can open my mouth to scream.
Sometimes all you need is someone to care. Melody didn't think anyone would care, but a letter did care... Unfortunately the letter sender also needed help.