A naked archangel turns up at the door to renegade angel Aziraphale’s bookshop, with no memory of who he is or how he got there, and Aziraphale and retired demon Crowley’s lives become extremely complicated. Heaven and Hell are both desperate to find the runaway. As Crowley and Aziraphale attempt to fix a human romance, things become increasingly unsafe for them, in the past and the present.

Ray and Ken, two hit men, are in Bruges, Belgium, waiting for their next mission. While they are there they have time to think and discuss their previous assignment. When the mission is revealed to Ken, it is not what he expected.