The investigations that Mulder and Scully began with Tad O’Malley have awakened powerful enemies. A panic begins as people all over the country suddenly start falling ill, and Scully looks for a cure. Mulder confronts the man whom he believes to be behind it all, but another figure from their past may prove to be the key.
Elenco: Gillian Anderson , David Duchovny , Mitch Pileggi , William B. Davis , Annabeth Gish , Bruce Harwood , Cary Elwes , Dean Haglund , James Pickens Jr. , Nicholas Lea , Tom Braidwood , William B. Davis .