Tripwire

The apocalypse rolls on as planned, with no Dean Winchester to interrupt, and Lucifer wins. As a result, humans are rounded up into camps and used for food and entertainment by the now-dominant monster and demon species. Adam Milligan, once the vessel for the archangel Michael (who is now presumed dead by the world at large) works as a bartender earning his keep, but his life is once again turned upside down by the appearance of Castiel. The angel asks Adam to look after none other than a weakened Michael and keep him safe from the demons who might want to kill him. Now Adam has to decide if Michael's really worth protecting, and if he is, what that means for both their futures.