Are you prepared to be shocked and surprised? Maybe even appalled? In the upcoming Supernatural episode, "Jump the Shark", which airs this Thursday at 9 pm on The CW, Sam (Jared Padalecki) and Dean (Jensen Ackles) receive a call on their father's cell phone by someone claiming to be his son, Adam. They're convinced it's a demon trying to set them up and go off to meet this third Winchester brother. What they discover is a surprising revelation that not only reopens an old investigation from their father's hunting past, but stirs up profound reactions from the boys as well. We have a couple of clips from this profound installment of the hit show.

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The next episode of Supernatural airs this Thursday, April 23rd at 9 pm only on The CW!