It’s a disturbing pattern that’s been going on for the past 40 years: thousands of cows seemingly slaughtered in the same strange, meticulous way on ranches around the world. This pattern has mystified ranchers, veterinarians, and law enforcement officials. Eyewitnesses report UFOs and black helicopters in the area where cows are turning up dead. The team is hot on the trail of a recent mutilation case to analyze the phenomenon.