All 24 episodes of the fourth season of what is arguably the greatest science fiction series in television history. This seven-disc gift set chronicles Special Agents Mulder and Scully as they try to explain the unexplainable. Some of the important episodes from this fourth X-FILES season include "Leonard Betts,""Sanguinarium,""El Mundo'" and "Memento Mori." Loaded with insights from the show's creators and producers such as Chris Carter, James Wong, Vince Gilligan, and Frank Spotnitz. Starring David Duchovny and Gillian Anderson as the subdued FBI agents.