"Are you?" Sam was already asking a lot of Jacen. Bringing him along to a place where Lucifer could so easily kill him. Or worse. It was risky. Beyond risky. Jacen was putting his life on the line. Sam was determined to make sure that it wasn't for nothing. Sam looked down at his hands, listening quietly as Jacen went over the plan. It really was all very simple. Or, at least, it was supposed to be. He was doing the right thing, wasn't he? He could do this, right? And just like that, it was almost as though he could see Ruby. Screaming. Telling him no. To turn around, to avoid the risk. He was being stupid. He couldn't do this. Not to himself. Not to her.
But you can, the blood inside him seemed to challenge, and you will. You have no choice.
"Look, Jacen..." He paused, interrupted by the sound of an engine rumbling nearby. It sounded familiar, but when a dark blue blur passed, Sam's mind was put to ease. No Impala. No Dean. Another face in the back of his mind, begging him to turn back. But his brother's face was just another reason for Sam to move forward. If he didn't do this, Dean would get hurt. Michael and Lucifer would both turn on him and God only knew how much more his brother could take. He'd already gone to Hell. He didn't need more pain; he needed peace. He could give him that.
Sam shook his head, picking off where he left off. "If this doesn't go our way...I need you to get out. Run. Do whatever you can to warn the others so that you all can find another way to take him - us down." Sam reached into his jacket, fingers brushing against the metal flask he'd tucked away on the inside. One last drink. Just in case. "I feel good. Really good. And I think - I think this can work. I know it can. But if it doesn't..." If. If Sam had it his way, that wouldn't be a problem. They wouldn't have to worry about anything. He'd take care of this himself. He'd fix everything. He'd promised himself he would. "I need you to swear you'll get out while you can."