Having given Lucifer the slip, Crowley manages to track down The Horn Of Joshua, another artefact touched by "the land of God", and offers it to the Winchesters in exchange for them helping him get revenge on Lucifer.
They, however, favour letting Lucifer use The Horn to beat Amara, before they would contemplate exorcising him from Cas and putting him back in The Cage.
Meanwhile, we learn that Rowena isn't actually dead and has been helping Amara recover from her "angel smiting".
I'll confess I was slightly disappointed by the prospect of Rowena being back in the mix, but her method for escaping death was rather canny so I gave her a pass on this one.
Lucifer is setting his own schemes in motion, returning to Heaven - for a brilliant 'boardroom' scene - and pitching his case to be welcomed back... possibly as God's replacement!
With perfect timing, Amara decides to flex her muscles and sends a warning blast of dark energy - which can be felt across the world - against Heaven, shaking its foundations.
This gives us a clue as to just how powerful she is, and why it should come as no surprise when the Winchesters' plan (to have Lucifer defeat her with the Horn of Joshua) doesn't go as everyone hoped.
Hell's Angel was one of those episodes that was primarily about moving all the pieces on the board into their required position for the final act.
With only five episodes to go now in this season, it certainly feels as though we're building up for the final, monumental, showdown between the Winchesters and Amara.
Amara has now been established, if we hadn't guessed it already, as the single most powerful entity that the Winchesters have faced and it's clearly going to take something more impressive than brute force for them to triumph.