Okay, now that we have a moment of pointless filler with Nick, I can take some time to hurt for Sam and Dean and Castiel all mourning for Jack in different ways. Dean being the, “I was too hard on him, and I’ll never forgive myself for that, so I’m going to take him on the adventure of his life,” dad.
Sam being the quiet, “let’s figure this out and get him help until the last bitter moment if we have to,” dad.
And Castiel being the, “we need to prepare ourselves if the worst happens to our son,” dad.
Three of the stages of grief represented really well.