Episode 10×09 or “Actually Nothing Was Left Behind”
So far this season Sam has cured Demon!Dean, Crowley has cured Cas, and Supernatural is now a musical. Dean still has the Mark, Sam is playing babysitter to his brother, and Hannah left Cas behind because humanity. The rogue angels are taken care of, Cole has made peace with Dean, and Crowley has a mother. Specific enough?
*Spoilers ahead, darling*