Sky Sci-Fi TV Guide — Friday, 4 September 2026

Harry tags along on Ben, Kate and Max's family trip to Yellowstone, hoping the mayor will lead him to answers about what the Greys are up to. Sci-fi comedy, starring Alan Tudyk

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

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

With the threat of the Saviors still looming, Aaron continues searching for allies. Daryl and Rosita take action and confront an old friend

Yvette Fielding, medium Derek Acorah and the experts visit Pengersick Castle in Cornwall, said to be haunted by the ghosts of sailors and monks, in the hope of experiencing something out of the ordinary

Yvette Fielding and the team visit a supposedly haunted airfield housing the wreckage of two planes which crashed after being shot down during a bombing raid in East Kirkby, Lincolnshire, during the Second World War

Yvette Fielding and Derek Acorah visit West Wycombe caves, the site of the notorious Hell Fire Club's satanic rituals, hoping something will go bump during their night-time vigil

Yvette Fielding and the team explore Mary King's Close, a 17th-century building in Edinburgh reported to house the spirits of victims of the plague. A child's head, a severed arm and a girl in a blue dress are among the spooky phenomena to have been spotted there

A chance for viewers to purchase goods from the comfort of home

A chance for viewers to purchase goods from the comfort of home

A chance for viewers to purchase goods from the comfort of home

Hoshi and Trip become infected with a mysterious virus that could leave them dead within hours, and Phlox discovers aliens have taken over their bodies to research human illness. Archer intervenes to try to save his crew members, and his bravery inspires the aliens to cure the deadly disease. Sci-fi drama, starring Linda Park, Connor Trinneer, John Billingsley and Scott Bakula

B'Elanna experiences painful memories regarding her identity when she learns she is expecting a child and resorts to drastic action. Roxann Dawson and Robert Duncan McNeil star

News arrives that Major Anna Teldy and her colleagues have made a discovery, forcing Dr Beckett to delay his departure from Atlantis, while Sheppard and Teldy's team explores the nearby village, seemingly a ghost town

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

With most of the team trapped in the bunker with the menagerie of future predators, Leek releases a Silurian sand scorpion at a busy beach and threatens to let loose more horrors. Stephen is the only one who can battle the scorpion, and as he does so Cutter and the others plot their escape - only to realise that if they do, they will unleash the creatures around them

Part two of two. Daniel Jackson and Vala still struggle to shake off the Goa'uld bracelets and find themselves transported to a distant galaxy, where they inhabit the bodies of two civilians on a planet governed by an unfamiliar deity

B'Elanna experiences painful memories regarding her identity when she learns she is expecting a child and resorts to drastic action. Roxann Dawson and Robert Duncan McNeil star