When they get to the crime scene, they're met by local law enforcement. The guy's like, "Whoa, whoa!" So Sam and Dean whip out their FBI badges. Sam says they just happened to be in the neighborhood. The officer snorts. "First the Texas Ranger and now you guys?" Dean looks towards the house, where a scrawny guy in a ridiculous fringed jacket and cowboy hat is talking to someone on the scene. In Baywatch-style slow motion, the scrawny guy takes off his hat and fans himself with it. It's Garth. "You gotta be kidding me," Dean grumps. "Hey, Chuck Norris," he calls out to Garth. Garth, surprised and overjoyed to see them, gives them both big hugs. Dean has gotten more hugs in these past few episodes than he did in the first seven seasons of this show. When Garth starts gushing about how much he's missed them, they lead him away from prying eyes. Then Dean proceeds to point out the flaw in posing as a Texas Ranger in Missouri, but Garth gives some lame excuse about not looking right in a suit. Like he looks any better in Suze Orman's rodeo jacket.
Garth starts saying that he's heard rumors about the Winchesters being back, but he's interrupted when "Jump" by Kriss Kross starts emanating from somewhere on his person. He opens his jacket to reveal three phones. He takes a moment to figure out which one is ringing and answers. "Yo, Earl, whatcha got? A revenant?" At least that what's my CC insists he's saying, because it sounds like "remnant." He listens for a moment and proceeds to tell Earl exactly how to dispose of the revenant, step by step. The Winchesters listen to this with growing surprise. "What are you doing?" Dean asks once Garth's call is over. "My job, hombre," Garth says. A thought occurs to Sam: "Hold up. Are you the new Bobby?" Dean, horrified, snaps, "Shut your mouth!" But Garth confirms that he is, indeed, the new Bobby, so be prepared for him to dole out exposition, gloss over plot holes, deliver annoying speeches and wear grimy hats. Garth says that with Bobby dead and the Winchesters gone, somebody had to step in and for some reason, that person was Garth. Sam and Dean stare at him, dumbfounded. "All right," Garth says. "Let's just get back to work and we'll talk about this later." Garth heads back to the crime scene. "Did Garth just tell us what to do?" Dean asks. Sam is too stunned to answer.
They join Garth, who introduces them to Scott Lew, son of the victim and his killer. They go through their paces, asking him about any marital problems, mental problems and so on. Scott says his parents were high school sweethearts, married 30 years. "There's no good explanation for why this happened," he says. I found myself thinking the same thing at the end of the episode.