Shocktillyoudrop has posted a synopsis of the Supernatual episode entitled "Hammer of the Gods," which will be airing on April 22. The information is direct from the CW. This episode will mark the return of Mark Pellagrino, who has convincingly played the role of Lucifer in past episodes.
This synopsis may contain spoilers for some:
"Sam (Jared Padalecki) and Dean (Jensen Ackles) are kidnapped by a group of gods, including Kali (guest star Rekha Sharma), Ganesh (guest star Keith Blackman Dallas) and Bladur (guest star Adam Croasdell) and held hostage in a small hotel. The gods want to use Sam and Dean as bargaining chips to stop the Apocalypse, but Gabriel (guest star Richard Speight, Jr.) shows up and warns them that if Lucifer finds them he will kill them all. Unfortunately, one of the gods turns on the rest and Lucifer appears."
The episode is directed by Rick Bota and was written by Andrew Dabb and Daniel Loflin. Again, the episode will be airing on April 22.