Sam woke up when Dean smacked him, frowning as he assessed the immediate situation. Okay, so they were in the car, that was pretty standard. But the radio was speaking, in a voice he very much recognized, and that wasn't a good sign.

He leaned foreword and grabbed the envelope on the dashboard, along with the map - opening and reading it as they were instructed by Oliver.

There was a long pause before Sam spoke up.

"Yeah, I have no idea what this means."