"Apocrypha" is the sixteenth episode of the third season of the American science fiction television series The X-Files. It premiered on the Fox network on . It was directed by Kim Manners, and written by Frank Spotnitz and series creator Chris Carter. "Apocrypha" included appearances by John Neville, Don S. Williams and Brendan Beiser. The episode helped to explore the overarching mythology, or fictional history of The X-Files. "Apocrypha" earned a Nielsen household rating of 10.8, being watched by 16.71 million people in its initial broadcast. The show centers on FBI special agents Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson) who work on cases linked to the paranormal, called X-Files. In this episode, Mulder returns from Hong Kong, having found rogue agent Alex Krycek (Nicholas Lea) while investigating a mysterious mind-altering black oil. Meanwhile, Scully pursues the man who she believes killed her sister. "Apocrypha" is the second part of a two-part episode, continuing the plot from the previous episode, "Piper Maru". "Apocrypha" was the first mythology-centered episode to be directed by Manners, and made use of a mixture of physical and digital effects to create the episode's antagonistic black oil. The episode's sets were also augmented with digital effects, amplifying what could be constructed within the given budget. Plot On August 19, 1953, a burned crewman talks to three government agents about his experience on the submarine Zeus Faber, completing the story told in the previous episode. He explains that he and other crew members were locked in with their captain, who was infected by the black oil. After being knocked out from behind, the black oil leaves the captain's body and exits via a grate into the sea. It is revealed that Bill Mulder and the Smoking Man are two of the agents who are interviewing the crewman. In the present, Fox Mulder and Alex Krycek return to the United States, but are run off the road by another vehicle. The assailants attempt to apprehend Krycek, but are severely injured when he emits a flashing light. The Smoking Man sees their bodies and orders their destruction. Mulder, who was knocked unconscious in the crash, awakens in the hospital. Dana Scully tells Mulder about Walter Skinner's condition, and says that an analysis of saliva has identified his shooter as the same person who killed her sister Melissa. The Syndicate meets to discuss the events surrounding the Piper