FBI special agents investigate unexplained cases known as `X-Files'. Though the government is convinced that the outlandish reports are false, conspiracy theorist Fox Mulder and realist Dana Scully, for most of the series, stop at nothing to prove that "the truth is out there."
As a review panel probes Mulder's claims regarding the existence of aliens, the agents hunt down a deadly extraterrestrial creature.
An armed man infected with a deadly pathogen climbs into Mulder's car and instructs him to keep moving. Guest starring Bryan Cranston.
After passing through the Bermuda Triangle, Mulder is trapped aboard a 1939 luxury liner filled with murderous Nazis.
Mulder and Scully arrive at the infamous Area 51, where in a bizarre incident Mulder swaps bodies with a government agent.
Scully searches for a way to reverse the process that caused Mulder and Fletcher to swap identities.
Mulder and Scully become trapped in a haunted house with a pair of ghosts who want everyone to be as miserable as them.
Mulder pursues a man who he believes is actually a demon bent on fathering a child.
Mulder and Scully investigate a man who claims that he can control the weather.
Walter Skinner discovers that he has only 24 hours to live - and to find out who is trying to kill him.
Mulder and Scully meet a mysterious man who has the knack of taking photographs of people just before they die.
While the Cigarette-Smoking Man narrates the history of the Syndicate, Cassandra Spender reappears.
Mulder and Scully attempt to prevent an alien invasion of Earth, but reversals and betrayals are everywhere.
A hurricane has hit a Florida town, and a former FBI believes it kicked up something otherworldly from the surrounding seas.
A woman desperately attempts to alter the outcome of events of a day that she is being forced to relive again and again.
Mulder and Scully go undercover in a community where the investigation into mysterious deaths has been hampered by a conspiracy of silence.
Mulder and Scully attempt to track down a killer dog that devours its human prey.
Mulder and Scully pursue an escaped prisoner who has the ability to move through solid objects.
One of Mulder's neighbours finds his literary creations coming to life, putting Scully in danger.
Mulder uncovers the story of a baseball-loving alien who joined the Roswell Grays in 1947.
The Lone Gunmen discover that the woman who brought their group together is still alive.
Mulder and Scully disagree over the strange appearance of a missing couple's skeletons.
Mulder believes that artefacts found in Africa provide evidence that human life on Earth started with aliens.