Robert Patrick Modell, aka "Pusher," has recovered from his injuries and escaped from a prison hospital. Mulder and Scully lead the manhunt even as Modell may be using his powerful mind-control capabilities to target Fox for revenge.
A teenager becomes the prime suspect in his stepfather's odd murder. Mulder is not buying it since the man was literally swallowed by the ground. After another parent is killed, the suspicion falls on someone close to the kids.
Rumors of witchcraft and sorcery surrounding a bizarre murder at a supermarket in a small New England fishing town lead Scully, who's on vacation, to a little girl and a cursed doll that may be hiding a murderous presence.
The brutal murder of a renowned computer programmer leads Mulder and Scully to investigate an artificial intelligence program loose on the Internet that has begun evolving on its own.
Mulder and Scully search for answers when separate groups of alien abductees are burned alive. They meet a woman with an implant in her neck and symptoms similar to Scully.
Scully undergoes hypnosis to recall her experiences on the bridge where the group of abductees was burned alive. Krycek provides the consortium with a vaccine for the black oil and tells Mulder of the planned colonization and alien rebels.
In 1990, Mulder investigates the death of a man who disappeared in 1952 before he could be charged in a series of bizarre killings. The retired agent who worked the 1952 case recounts the facts to Mulder and the connection to his father.
The prime suspect in a murder case is a woman who has been blind since birth, leading Mulder and Scully to conclude she may possess the ability to see through a killer's eyes.
Mulder goes undercover to infiltrate a militia group armed with a deadly pathogen and wanted for domestic terrorism. Scully becomes suspicious when Mulder lets a suspect escape but she learns that his assignment may be a suicide mission.
Paranoid telemarketer takes his coworkers and Mulder hostage claiming that their boss is a disguised insectoid monster that's literally turning the workers one by one into his zombie drones.
A government assassin is caught trying to kill child chess prodigy Gibson Praise during an international chess tournament. Mulder's old flame Agent Diana Fowley arrives to help on the case but Scully is suspicious of her.
After the events of The X Files (1998) movie, Mulder and Scully's new boss, Kersh, assigns agents Spender and Fowley to work on the X-Files instead of them. Ignoring this, Mulder takes Scully on a hunt for a rampaging alien.
A man tormented by a piercing sound that could make his head explode unless he heads west as fast as possible takes Mulder hostage to drive for him, while Scully rushes to find the cause of this affliction that also killed the man's wife.
Mulder boards the wreck of a legendary missing WWII ship that suddenly appeared in the Bermuda Triangle. The ship turns out to be a time portal. Now Scully must use all of her wits to try and get the unwilling FBI to help her save him.
An anonymous tip finally brings Mulder and Scully to the mecca of all UFO lore, Area 51. But when the agents witness the flight of a mysterious craft there, Mulder and one of the Men in Black, Fletcher, somehow switch bodies - and lives.
Scully begins to suspect that her partner's strange behavior is more than it appears to be, while Mulder fights to return his life to normal before it's too late.
On Christmas Eve, Mulder and Scully find themselves trapped in a haunted house with two ghosts who are determined to prove just how lonely the holiday can be.