During a police operation in El Paso, authorities discover a house filled with deceased Latinos, with just one person left alive. This individual, referred to as The Traveler, is brought to the station for interrogation. There, he reveals that the area is steeped in magic and shares tales of the terrifying experiences he has faced throughout his extensive life. He speaks of gateways to alternate realms, mythical beings, demons, and the undead, recounting stories rooted in Latin American folklore.