Waiting (Supernatural)

Evelynn Kelly woke up in the bunker with no recollection of how she got there. She's fourteen, alone and scared of the three men she finds waiting in the main room. They take a liking to her and navigate her through the hunting life while also trying to figure out what put her in their bunker.
She is more invested in this than she first thought to be, mostly because she is the vessel for the first female arch angel created. More and more secrets are revealed until no one knows who to trust anymore. The only thing left to do is wait.