"A deal?" Briggs pushes off from the door to face him. "What kind of a deal? You know this guy isn't going to keep his word about anything." As for the rest, he's just not addressing that Mike is right. At the moment, he's more alarmed that Mike made some kind of a deal.

Now, he notices the details about the room he hadn't seen before. It doesn't take much guess work to understand what their captor wants. And what kind of deal Mike is talking about making. "No. This is--no. We're both getting out of here. The house stands a better chance with both of us."