Supernatural: Fan Fiction Season 10, Ep 5
Fan Fiction is the 200th episode of Supernatural. Dean wants to get back to hunting and convinces Sam to pursue a case about a missing teacher at a private all-girls school. Upon arriving at the school they find the students putting on a musical about a topic that hits a little too close to home for the Winchester boys. The musical is headed by a very determined student Director/Writer who has a very particular take on the story, despite Dean's protestations.