Bobby is in danger (again), Pestilence lives up to its name, and Dean may be ready to make another very bad decision in the May 6th episode. Such a huge amount looks to be happening in this episode, I'm surprised they're going to fit it all into one hour. Enjoy the spoilers, people, because we're really getting to the good stuff now.
BOBBY SELLS HIS SOUL TO HELP STOP THE APOCALYPSE/DEAN GOES HEAD TO HEAD WITH DEATH - Crowley (guest star Mark Sheppard) tells Bobby (Jim Beaver) he will give him the location of Death (guest star Julian Richings), the fourth horseman, in exchange for his soul. Knowing Sam (Jared Padalecki) and Dean (Jensen Ackles) need that fourth ring to stop the Apocalypse, Bobby reluctantly agrees. Sam and Dean confront Pestilence (guest star Matt Frewer), but he unleashes a deadly virus upon them, so Castiel (Misha Collins) must intervene on their behalf. Dean has a meeting with Death to discuss Lucifer, and an unholy alliance is formed at a very high price for Dean.