What is behind the gruesome attacks of cattle who have been mysteriously and violently killed: : satanic cults, an unknown predator, or something previously unknown to man? Thousands of cases have been found these past 40 years where cattle found mutilated under abnormal circumstances; these livestock are found dead, often with their blood drained and organs or body parts removed from their bodies. An abnormal amount of radiation also appears in the soil near the area of the killings and none of the patterns match up with behavior of a scavenger. A lack of footprints or tracks and strange circles near the site also widens the mystery. A MonsterQuest team will gather samples and head to a laboratory to scientifically analyze the most compelling evidence.