He winced at the force in his brother's words, the anger. "Dean, it's ten years. Ten years and both me and Adam will be able to walk out of Hell. Cas won't have to risk his life trying to get us out." Never mind the fact that the angel might be a father. He'd not see his friend lose a chance at that on his account.

"No contracts, no soul exchanges. And I'll be able to make sure that good people don't wind up in Hell. What happened to you, to Dad, it doesn't have to happen ever again."

"Dude, I'm not stupid. Of course I don't trust him. But he wants me to do this. This deal, I can word it right. I can make sure that if something happens, I get out. If he doesn't succeed in holding Hell, I get out. If he tries to go back on his word, I get out."

Sam leaned forward, eager and earnest as ever. "Dean, it's not forever. I'll be able to visit. When it's over, I can go home."