Original Airdate: February 11, 2001
Writer(s): Frank Spotnitz
Director(s): Richard Compton
Guest Stars
Ken Jenkins as Deputy Chief Karras
Penny Johnson as Dr. Hellura Lyle
Adam Lieberman as Officer Philbrick
Vyto Ruginis as Lt. Bianco
Judith Scott as Dr. Kai Bowe
Brent Sexton as Steven Melnick
Bill Jacobson as Thug
Mary Kathleen Gordon as Woman
Christopher Graves as Kid
Kevin Graves as Kid
Script: View
Synopsis: Scully and Doggett are investigating a plague of bacteria in the subway tunnels of Boston which eats away human flesh.