Johnny nodded his thanks at Harry and then started away from the bar itself and toward the front door. Jo was saying exactly what it was that he was thinking. He didn't feel that he needed to answer her statement.
He looked back at Jo.
"Yes." He said, there was no room for guessing or misinterpretation of the word or his tone. "We will."
There was no choice in the matter. They would find Mary, and they would do it before she was harmed. They would bring her home. He had told Dean that he'd give his life for her, and he meant it. And he hadn't just said it because he was pretty certain he couldn't die. Even if he'd been able to, he would have made the promise.