Later, Sam uses his laptop to analyze Kevin's last message. He picks up someone in the background saying, "Last stop, Centreville." He's figured out that it's the Centreville in Michigan and not the Centreville in Maryland or the Centerville in Utah because Michigan is where Kevin's high school girlfriend is going to college. Dean is surprised when Sam wants to come with. "You were right," Sam says. "He was our responsibility, so let's find him." Sam tosses him the keys to the Impala. Dean's glad there are "no visible signs of douchery," but wonders why the inside smells like a dog. Sam plays dumb. I think he's playing, anyway.
Somewhere along the way, they stop at a motel. Dean contemplates a vending machine like it's the strangest thing he's ever seen. It's actually a nice character moment that shows, in a fairly subtle way, what it's like after a great ordeal to be presented with something most would take for granted. Two boys run past, shooting at each other with toy guns. Dean watches them and finds himself inspired to have a flashback to Purgatory.
He's running through the woods, knife in hand, chasing some guy in a ponytail and waistcoat. Dean looks kind of awesomely scary, partially covered in blood, not even panting for breath. He is efficient and quiet, focused like an animal. His prey is scared, noisy and clumsy. Waistcoat tries to take a whack at Dean with a crudely made ax, but Dean knocks it out of his hand. He pins Waistcoat up against a tree. Waistcoat flashes some vampire teeth. "Take a breath, calm down," Dean says. Just let yourself be hypnotized by the eyelashes, man. "Where's the angel?" Dean asks. "You're him -- you're the human," Waistcoat says. Dean repeats his question, but Waistcoat doesn't know the answer. Dean grabs the ax and lops off the guy's head. Another vampire tackles Dean to the ground, knocking the ax from his hand. Just when it looks like Dean is about to become vampire food, another man lunges at his attacker. It's Benny. He wields another makeshift ax. Snarling, he beheads his foe and turns to look at Dean. Because this is the story of how they first met, Dean looks shocked to discover that his rescuer is a vampire.
Back to the present. Dean sits in the motel room and fidgets. Sounds from the city beyond seem intrusive and much too close. "You okay?" Sam asks. "Yeah," Dean says, even though he is most certainly not okay. "What do you say we blow this joint and hit the road?" Sam points out that they need some rest. Besides, Kevin's waited a year -- what's another 12 hours? They get into another argument about their responsibilities. Knowing that people died without their help weighs on Dean, but Sam says he realized it wasn't up to just him to save them. Dean stares at his brother like he's even more alien than a vending machine. Dean needs to cut him a break. Sam was obviously very busy growing out his hair. "What could possibly make you stop just like that? A girl?" Dean asks. Sam tries to look like he's somewhere between surprised and innocent, but doesn't quite pull it off. "Was there a girl?" Dean asks again. "The girl had nothing to do with it," Sam says. Dean scoffs.