Dream House / UFO Encounter
E1
Case File #34112: ""Dream House"" Blaine and Debbie McCallister summon the Office of Scientific Investigation and Research to investigate the cause of numerous strange occurrences at the site of their new home, after their teenage daughter is hospitalized as a result of a poltergeist encounter. Case File #52111: ""UFO Encounter"" Agents from the O.S.I.R. are summoned to a small town to investigate a double alien abduction of two boys and UFO sightings witnessed by many townspeople.
Possession / Man Out of Time
E2
Case File #67102: ""Possession"" A software designer tells of demons attacking Case File #10103: ""Man Out of Time"" A disoriented man tells of being from the 17th century.
Reptilian Revenge / Ghostly Voices
E3
Case File #99101: ""Reptilian Revenge"" After an elderly man dies, his pet snakes escape Case File #44114: ""Ghostly Voices"" A voice calls a woman home.
Creeping Darkness / The Power
E4
Case File #77110: ""Creeping Darkness"" Impenetrable darkness threatens to engulf an Argentine town Case File # unknown: ""The Power"" Stress boosts a woman's psychokinesis.
Free Fall / The Presence
E5
Case File #47129: ""Free Fall"" A sky diver tells of defying gravity Case File #92109: ""The Presence"" A child fears a destructive force.
The Infestation / Human Apportation
E6
Case File #33130: ""The Infestation"" NASA scientists die searching for a meteorite Case File #87105: ""Human Apportation"" A Californian and her daughter inexplicably find themselves in Toronto.
The Underneath / Phantom Limb
E7
Case File #28120: ""The Underneath"" A deadly creature lives in the sewers Case File #52113: ""Phantom Limb"" Strange events follow an accident that claimed a farmer's arm.
The Transient / Two Lost Old Men
E8
Case File #64131: ""The Transient"" A dybbuk invades the souls of innocents Case File #86126: ""Two Lost Old Men"" Young people pass through a forest's barren zone and instantly age 50 years.
UFO Duplication / Clara's Friend
E9
Case File #623119: ""UFO Duplication"" Extraterrestrials clone farm inhabitants Case File #847117: ""Clara's Friend"" An apparition communicates with a girl.
The Hunter / The Healer
E10
Case File #702134: ""The Hunter"" A werewolf is suspected in cattle mutilations Case File #969121: ""The Healer"" Teen is credited with healing powers.
The Curse / Angel on a Plane
E11
Case File #631136: ""The Curse"" Death strikes archaeologists who uncovered an Egyptian burial chamber Case File #260122: ""Angel on a Plane"" A mysterious woman safely lands a plane hit by lightning.
Anasazi Cave / Devil's Triangle
E12
Case File #288128: ""Anasazi Cave"" Deaths at an archaeological dig may explain the mystery of the lost Anasazi Case File #199137: ""Devil's Triangle"" A man claims he was adrift in the Devil's Triangle.
The Undead / Stalker Moon
E13
Case File #763139: ""The Undead"" A homeless man revives during his autopsy and escapes Case File #569135: ""Stalker Moon"" A fan stalks an actress from the grave.
Forbidden North / Reincarnation
E14
Case File #26014: ""Forbidden North"" A humanoid beast approaches a leg-trapped logger Case File #610115: ""Reincarnation"" A man undergoing past-life regression predicts the future.
The Greenhouse Effect / The Buzz
E15
Case File #213127: ""The Greenhouse Effect"" Plants attack a family Case File #213127: ""The Buzz"" Mysterious buzzing coincides with unexplained deaths.
The Light
E16
Case File #206132: ""The Light"" As wounded Rollins lies near death, his evil doppelganger stalks the Office of Scientific Investigation and Research.
The 13th Floor / The Believer
E17
Case File #957176: ""The 13th Floor"" A possessed woman takes a horrible vengeance on her philandering husband Case File #284145: ""The Believer"" A kidnapper transmits his extortion demands psychically.
The Fog / House on Garden Street
E18
Case File #559146: ""The Fog"" A dense fog, mass hallucinations and a serial killer arrive simultaneously on death row Case File #810126: ""House on Garden Street"" An apparition appears to a couple under stress.
Second Sight / Chocolate Soldier
E19
Case File #295143: ""Second Sight"" A kidney-transplant recipient has frightening visions Case File #734138: ""Chocolate Soldier"" A cult leader has power over women.
The Fire Within / Fate
E20
Case File #994124: ""The Fire Within"" Spontaneous human combustion Case File #232148: ""Fate"" A teen with psychic powers struggles to understand events leading to his best friend's death.
Death at Sunset / Collision
E21
Case File #693142: ""Death at Sunset"" A mysterious illness claims its victims at sunset Case File #793144: ""Collision"" The soul of an accident victim possesses the driver who killed her.
Perestroika
E22
Case File #321147: ""Perestroika"" The Office of Scientific Investigation and Research's Director of Operations Frank Elsinger orders Case Manager Doyle to lead a team of investigators to Archangelsk in Northern Russia. Having just viewed video footage of a team of Russian scientists examining a creature found frozen in a glacier by two gas plant caretakers, Elsinger does not reveal to Doyle that the last scene of the video showed scientist frightened and pleading for help.