Check out the official guide for Supernatural Season 8 Episode 19, "Taxi Driver," airing April 3 on the CW.

SAM AND DEAN FACE THE SECOND TRIAL

• Sam (Jared Padalecki) and Dean (Jensen Ackles) respond to a call from Kevin (guest star Osric Chau), who is terrified after hearing Crowley’s (guest star Mark Sheppard) voice in his head.

• After hearing Kevin’s news, Sam and Dean team up with reaper named Ajay (guest star Assaf Cohen), who helps them deal with the second trial from the Tablet.

• Meanwhile, Dean receives a visit from Naomi (guest star Amanda Tapping) and realizes he must find Benny (guest star Ty Olsson) and ask for a huge favor.