Dean immediately returns to the motel room to pack up his things. We join him and Sam in mid-conversation, at the point where Sam is just starting to explode with indignant rage. "What exactly is that supposed to mean, you've 'got to go'?" He huffs and puffs and reminds his brother that they're on a case. In turn, Dean reminds baby bro that there's no case without Kevin Tran and they're not exactly hot on his trail. Sam follows Dean out to the car, still sputtering in disbelief that big bro is bailing. Dean tells him to keep the room, which, after all, is already paid for. "You've got some research to do and I've got some personal crap I gotta take care of," he says. "What does that mean, 'personal'?" Sam asks. "Did you have a stroke?" Dean asks. "Vocabulary? 'Personal,' as in my own, grownup, personal... I dunno... crap!" Sam starts to protest, but Dean points out that Sam took a year off from the job. He's just asking for a day. Sam doesn't have anything to say to that.
As Dean speeds through the dark, rainy night, he starts having a flashback. Which seems just... so, so dangerous. He remembers himself having a beautifully shot, slow-motion fight back in good old Purgatory. Someone in the background whistles Grieg's "In the Hall of the Mountain King." It sounds distant and a bitty tinny and surreal. Dean dispatches a monster of unknown species (it looks like a youngish Asian guy) and then stands around looking bloody and intense as he scans the woods around him. He reaches behind him to touch Benny on the arm. Without words, Benny understands the cue and dives into the fight as the next wave of enemies rushes toward them. Benny is the one whistling. It's nice to have a little soundtrack for one's fights.
Back at the motel that the crappy little credit-card-counting criminal prodigy Rain Man paid for, Sam gets to work researching said prodigy's digital trail. He pulls up Kevin's application to Princeton. Interestingly, Kevin lists his religion as "agnostic." "You are a wascally wabbit, Mr. Tran," Sam says to his computer screen. But it's not just wabbits Sam is hunting, as becomes clear when he puts aside Kevin's records to look up Amelia's. He hesitates, but not for long, before he convinces himself he's just acting out of concern. Why he needs to look up her credit union info out of concern is a mystery, but whatever. He's soon distracted when he hears a clunking in the bathroom. He rolls up his sleeves and tiptoes over to investigate as quietly as his pontoon-sized feet will allow. Tense, eerie music plays. Sam turns on the light and discovers that the source of the noise is... a creaky vent fan! Dun, dun, DUN!