Connor Doyle, the team's case manager in the first season comes back from the dead, but this time his intentions are not all good.

Case File # unknown Donner and Stone are caught in a sinister plot when they investigate a rave club overrun by zombies.

Case File # unknown An old man following three Old West outlaws is actually Axon 30 years in the future, warning his younger self against inventing time-travel.

Case File # unknown A journalist's relationship with a Death Row inmate causes a rare haunting.

Case File # unknown The team's investigation of a woman's precognition of her own death leads to a shocking discovery.

Case File # unknown Oil drilling in an ancient tribal burial ground unleashes a demon killer.

Case File # unknown The O.S.I.R. investigates a plane crash and its survivors, who have been in a sort of limbo since their disappearance 10 years ago.

Case File # unknown A doctor's mission to colonize a new world forces Matt to make a decision about his future.

Case File # unknown Axon must race against time to save the life of an alien grounded in a meteor crash.

Case File # unknown An autistic boy develops psychokinetic abilities while mourning the death of his twin brother.

Case File # unknown During a search for three missing operatives, the O.S.I.R. uncovers a gruesome situation, cannibalism.

Case File # unknown Lindsay and Peter are under cover as a married couple to investigate aberrant behavior among community residents.

Case File # unknown Struck by lightning, a woman must release the electricity through sex in order to survive.

Case File # unknown The O.S.I.R. investigates satanic cult activity on a college campus.

Case File # unknown Matt inadvertently enters an alternate dimension as a contestant on a game show where he must re-examine his life.

Case File # unknown An angry spirit torments a group of artists in an old church.

Case File # unknown A ghost-like image in a photograph might be the link between a serial killer and a real-life angel.

Case File # unknown A spiritual entity is blamed for an outbreak of murders at a Hollywood retreat.

Case File # unknown During an investigation, Donner, Stone and Davison are trapped in an elevator.

Case File # unknown Mia Stone experiences precognitive dreams and hallucinations during an investigation.

Case File # unknown Peter's old friend lures him into the wilderness seeking retribution for past deeds.

Case File # unknown Mysterious sky-falls may be the result of the Super Sargasso Sea theory.