Episode 5 - Millennium
Mulder and Scully enlist criminal profiler Frank Black to help prevent members of the Millennium group from attaining Armageddon.
Aired: November 28, 1999
Writer: Frank Spotnitz and Vince Gilligan
Director: Thomas J. Wright
This was a terrible headache to devise - we only realized after we'd committed to the idea how difficult it was going to be to meld the worlds of "Millennium" and "The X-Files." It was not completely successful, I suppose, but still seems worth it for having brought back Lance Henriksen.