When a crying baby leads to death in a mysterious abandoned house, Mary (guest star Samantha Smith), Sam (Jared Padelicki) and Dean (Jensen Ackles) decide to investigate. Meanwhile,Castiel’s (Misha Collins) hunt for Lucifer (guest star Rick Springfield) leads him, begrudgingly, to partner up with Crowley (Mark A. Sheppard). Robert Berens wrote the episode directed by Robert Singer (#1203). Original airdate 10/27/2016.