Castiel: The plan is to subdue him using angel cuffs and spell work. They have to get Michael out of Dean.

Jack: And if he doesn't leave?

Castiel: Then they'll try to drive him out.

Jack: And if that doesn't work?

Castiel: Jack...

Jack: Cas, Michael has to be stopped.

Castiel: I know, and he will be, after Dean is...

Jack: No, Dean doesn't matter. You're all so focused on trying to save Dean. And I get it, I understand, but if he can't be saved, if it comes down to him or Michael... Michael has to be stopped. Caged or killed...

Castiel: And if that means that Dean dies, too!?

Jack: Then Dean dies. I know this Michael. I've seen what he's done to an entire world, and so have you. If stopping that from happening here means that Dean has to die, then... Do you think he'd want it any other way?