What Is and What Should Never Be (S02E20)

While hunting a djinn, or genie, Dean is attacked and transported to an alternate world. There, his mother, Mary (recurring guest star Samantha Smith), is alive; Sam is in law school and engaged to Jessica (recurring guest star Adrianne Palicki); and Dean lives a very normal life with his girlfriend, Carmen (Michelle Borth). However, after he starts seeing a strange girl, Joy Nicholson (Melanie Neige Scrofano), and learns that all the people he has saved in the past have died, Dean must decide whether he wants to stay in this safe, new life where everyone he loves is alive - or if he wants to return to the hunt. (Warner Bros. UK)