An unsuspecting traveler brings a blood-sucking legend with him to Portland, and Nick and Hank find themselves investigating the gruesome trail of "El Chupacabra." Meanwhile, Monroe and Rosalee prepare to leave for their long-overdue honeymoon as they are met with more threats regarding their marriage. Elsewhere, Viktor and Adalind decide to take a trip of their own, while Wu decides to confront Nick about what he has been seeing.