WHISTLING IN THE DARK – Sam (Jared Padalecki) and Dean (Jensen Ackles) are baffled when they come up against a monster they have never heard of before. Jack (Alexander Calvert) does his best to impress a new group of friends. John Fitzpatrick directed the episode written by Davy Perez & Nick Vaught. (#1416). Original Airdate 3/21/2019.