TV Guide Sky Sci-Fi Wednesday

An anomaly opens underwater, dragging a teenager into a flooded drain leading to a canal. As the team launches a frantic search, Jenny narrowly escapes with her life when her boat is attacked by a shark - although the youngster is not so lucky. The team is convinced he was killed by the big fish, but Cutter is not so sure, believing there is a different creature out there. Sci-fi drama, starring Douglas Henshall, Lucy Brown and Hannah Spearritt

Pete and Myka head to Lakefield, Illinois, to investigate the disappearance of a walking stick that gives its owner the power to create miniature earthquakes. Sci-fi drama, starring Eddie McClintock and Joanne Kelly

Yvette Fielding and a team of experts visit Croxteth Hall in Liverpool, a Victorian building where the ghost of a boy is said to have been spotted in the dining room, and footsteps have been heard in the attic

Counsellor Troi despairs at her inability to communicate with an alien force which proceeds to override the ship's controls, threatening to destroy the Enterprise and its crew. Sci-fi adventure, guest starring Whoopi Goldberg

Captain Archer leads a team in a desperate bid to stop the Xindi superweapon from reaching Earth, while the ship has a confrontation with the Sphere Builders. Sci-fi drama, starring Scott Bakula and Jolene Blalock

Sisko is forced to follow his son into a parallel universe, where a mirror image of O'Brien prevents him from leaving. He also meets up with the double of his late wife Jennifer - who is developing an attachment to Jake. Starring Avery Brooks and Cirroc Lofton

When an 11-year-old girl wanders through an anomaly into a desert, ARC traitor Oliver Leek is first on the scene with a heavily armed team of mercenaries at his disposal - but they soon fall victim to deadly scorpions lying below the sand. Cutter and Stephen eventually make their way through and manage to locate the girl, only to get stranded when the portal closes behind them. Douglas Henshall stars

Cutter sets out to unmask the ARC traitor, only for his plans to be interrupted when a giant mammoth appears on a busy motorway in broad daylight. The team rushes to the site, and eventually manages to trap the beast in the back of a lorry - but suspiciously, Stephen is nowhere to be found. Douglas Henshall stars, with an appearance by Ramon Tikaram

Captain Archer leads a team in a desperate bid to stop the Xindi superweapon from reaching Earth, while the ship has a confrontation with the Sphere Builders. Sci-fi drama, starring Scott Bakula and Jolene Blalock

An off-world expedition takes a dramatic turn when Lt Johansen and Corp Reynolds are kidnapped by an alien creature. Young, Greer, James and Marsden are forced to ask Varro and his Lucian team to retrieve their crew members, while Eli and Brody stumble across a store of ancient technology

When an 11-year-old girl wanders through an anomaly into a desert, ARC traitor Oliver Leek is first on the scene with a heavily armed team of mercenaries at his disposal - but they soon fall victim to deadly scorpions lying below the sand. Cutter and Stephen eventually make their way through and manage to locate the girl, only to get stranded when the portal closes behind them. Douglas Henshall stars

Cutter sets out to unmask the ARC traitor, only for his plans to be interrupted when a giant mammoth appears on a busy motorway in broad daylight. The team rushes to the site, and eventually manages to trap the beast in the back of a lorry - but suspiciously, Stephen is nowhere to be found. Douglas Henshall stars, with an appearance by Ramon Tikaram