Dean Winchester couldn't find Sam. Please! Please! Please God! He wanted to cry but he pushed his panic down. It was his job to keep him safe. His one job and he failed. Again. He couldn't . Not after the incident with the shtriga. He couldn't do this again. Think! Think!
Of course it was stupid idea to play cops and robbers but Sammy was so bored and so insistent. How could he have been so stupid?! And of course that dick Mitch had to drop them off at the freaking park! Because that's what children do right? Hang out at parks? Shit! Dean had asked him to drop them off at the motel. Where did Dad find these freaks?!
Dean paused in his frantic search for Sam. Relax! Relax! Think! He gnawed his knuckles as he went through what his dad had taught him about tracking again. Bile threatened to rise, he'd already done this. Again! He took a deep breath and went through it again. And again.
He walked back to where he had started. He looked at his watch - 12 minutes. A lot could have happened in 12 minutes. Sam could be dead - no. Don't go there.
Dean looked around absorbing the details the way his father taught him. How far could a six year old have gone? Sammy's a runner so factor that in. Think! What were Sam's patterns when he played this game? His favourite places in parks? Sam was an uncannily sneaky, little creature but he still had his 'tells'. Dean as the older, more experienced brother should be able to figure it out. What would Sammy do?
Dean closed his eyes for a moment and pictured the park in his mind. He opened his eyes. Again.