Jack Rader

When animals from a zoo in Fairfield, Idaho, disappear from their cages, reappearing miles away, and a local man is killed by an invisible force, Mulder and Scully investigate. They become caught in a conflict between an animal rights activist and a zoo director, and Scully is forced to conduct the strangest autopsy of her career.

The Harts' purchase of an antique auto leaves them open to a wealthy couple's efforts to acquire the car; guest Murray Matheson.

It's the odd couple revisited when Buntz lets `Sid the Snitch' bunk in his apartment to hide from a vengeful ex-con. Hill resents his temporary assignment with a white cop who refused to help a black officer in distress.

An accident at a chemical warfare research station sends David on a frantic race for an antidote to save his and a friend's life.