God creates a new Angel and no one knows why. Castiel must look after the new fledgling until it's purpose is revealed.
I don't know when it's set so be prepared for some random character pop ups...
Dean has gone to Hell in exchange for Sam's life. Now, he's back and everyone wants to know who and why. But, this is just the beginning of their problems. Lilith is breaking the seals to set Lucifer free and the angels are trying to stop her. But, the angels are failing. It's up to the Winchesters to stop Armageddon form coming, but how can they if one of them has turned against them?