Hotchner and his team investigate a spree of killings in a small Texas town involving a teenage boy and his girlfriend.
When a bar owner's body is found in the East River, the investigation takes Castle and Beckett through the forgotten tunnels and passageways of turn-of-the-century New York; Castle considers buying a bar.
Against Cabe's advice, Team Scorpion heads to Las Vegas for a simple casino job, but a robbery leads to Walter's arrest and the rest of the team is left to clear his name.
Nick and Hank investigate a cop killer who scalps his victims. Meanwhile, Juliette begins to email Nick's mom, and Adalind finds herself much closer to delivering her baby than previously thought.
Monroe fights an impossible battle to convince his parents to embrace his life choices. Meanwhile, Nick turns to Juliette to help him figure out the Wesen aspect of his cop-killing scalper investigation.
