It had been a long time since Dean saw Sam looking so frightened. His brother was stiff and unresponsive when he tried to hold him, too. Looked like he was in shock or hysterics or something worse.

Dean held onto him tighter and guided him over to sit on the edge of the bed. "Okay, deep breath Sam. Whatever's happened, we can't fix it right this second, so you've gotta calm down. Okay?"

He cupped a hand to the side of Sam's face to keep eye contact. "Tell me what happened. How do they know?"