The Colorado prairie has become a graveyard. Mutilated cattle, their organs surgically removed, litter the high country. Is this the gruesome work of a Satanic cult? Of extraterrestrials? Of conspirators who arrive and leave in mysterious black helicopters? The locals are terrified—and it falls to their new sheriff (JoBeth Williams) and a troubled cop (Robert Urich) to unravel an eerie skein of deception and danger to discover the stunning truth. This paranoia-fueled thriller from director Alan Rudolph (Welcome to L.A., Afterglow) boasts a blue-chip supporting cast and spectacular, spooky cinematography that pulls viewers deep inside the mystery. And here's the scariest thing of all: Endangered Species took its inspiration from real-life events.