Mulder and Scully investigate zoo animals turned invisible and violent, discovering an alien presence orchestrating their escape in protest of the creatures' captivity.
First aired: 1995-02-24
Director
James Whitmore, Jr.
Writers
Steve DeJarnatt
Guest cast
Jayne Atkinson, Lance Guest, Jack Rader, Tom Braidwood, Bruce Harwood, Jody St. Michael, Garvin Cross, Charles André, Tom Glass