It's Christmas and for some reason Sam doesn't want Dean and Cas inside the bunker. He sends them outside and what else is Dean supposed to do with Cas when there's snow literally everywhere? This story includes a snowball fight, building a snowman and making snow angels, and a surprise for Dean and Cas when they return to the bunker! ;)
After Dean's finally human again, Sam decides to take him to England for holiday. Unfortunately, even in Britain they have monsters, and so they "accidentally" find a case. Problem is that it's not a monster, only an old warlock who keeps killing himself because he can't wait for his king any longer.
Sam had managed to catch his brother - now a demon. With Castiel's help, Dean turns back into human and he and Sam need to talk. Especially about a certain amulet that Sam kept through all those years and showed to Demon Dean.
Bobby is a ghost. No one hears him, no one sees him. But he can see and hear everything. Currently he's stuck with Sam and Dean because Dean has his flask. What could Bobby possibly learn about Dean when he and Cas go out? ...Alone? Without Sam? (and obviously with the flask)