As other season finales of “Supernatural” have begun in the past, tonight’s episode of “Supernatural” opened to the sound of Kansas’ “Carry On Wayward Son” during a montage of previous events. That unusually led to Chuck the prophet narrating the history of the Winchesters’ car, a 1967 Impala. An alcoholic Bible-thumper named Sal owned it until a young John Winchester bought it from a used car dealer. This led us to the present day, where Dean told Sam that he approves of his plan to catch Lucifer by accepting him. Saying, “You’re not a kid anymore, Sam, and I can’t keep treating you like one”, this was just the beginning of the fine acting that was to be seen on behalf of the show’s cast.
Later on, as Sam, Castiel, and Dean load gallons of demon blood into the Impala’s trunk, Bobby searches the newspaper headlines to guess where Lucifer is. However, it is Dean who notices the abnormally low temperatures in Detroit and remembers Lucifer hinting, “It would all go down in Detroit”. During the car ride, Sam makes Dean promise not to bring him back from Satan’s cage and to go off and live a “normal, apple pie life” without him.