It’s coming down to the wire, folks and things are getting tense around the old Winchester farm. Looks like Bobby and Dean are going to work a little intervention but how often does that work out the way its supposed to. . .

No pics yet, but here’s the official word on Supernatural 4.21: “When the Levee Breaks” which airs Thursday, May 7.

Do not continue reading if you don’t want to get spoiled…

DEAN AND BOBBY TRAP SAM IN THE PANIC ROOM — Dean (Jensen Ackles) and Bobby (Jim Beaver) lock Sam (Jared Padalecki) in Bobby’s panic room so he can detox from the demon blood. However, as Bobby sees more seals are being broken he tells Dean they should let Sam out to help them fight the impending apocalypse. Dean disagrees and goes to Castiel (Misha Collins) for help. Sam and Dean have a big blowout confrontation. Robert Singer directed the episode written by Sera Gamble