'The Winchesters': Watch the New Promo for the CW's 'Supernatural' Prequel Series (Exclusive)

The new series, which chronicles the love story between Dean and Sam Winchester's parents, John and Mary, premieres Oct. 11 on The CW. Jensen Ackles returns to reprise his role as Dean and serve as the series narrator. Ackles and his wife, Danneel, are executive producers.