The trailer opens with a voice describing Laredo as a safe city with heavy law enforcement, before immediately cutting to a 911 call in which a man reports finding a woman bleeding in the grass on Highway 255. Investigators initially consider the possibility that she is a border crosser, a common occurrence in that part of the county, before ruling it out. A news report reveals that the location is about a mile from a prior homicide where another woman was found dead more than a week earlier. Investigators indicate both women may have been sex workers. Law enforcement voices on the ground discuss the possibility of a serial killer operating in the area. Officers speculate in real time whether the suspect may still be driving nearby looking for another victim, and describe the investigation as searching for a needle in a haystack. A police radio call then announces a positive ID on a truck matching both murders. Officers command the driver to turn around with urgency. Host Jed Lipinski introduces the season formally, and the trailer closes with an interview clip in which a source describes a physical feeling of fear that the person they encountered was responsible for the killings.
