TV Guide Horror Channel Thursday

After a volcanic eruption in Iceland, a scientist becomes convinced a series of similar cataclysms is about to occur across the world, potentially wiping out the human race. However, he faces an uphill struggle convincing anyone of the danger. Action adventure, starring Xander Berkeley and Amy Jo Johnson

The vessel is attacked by a mysterious opponent, forcing Dylan to take drastic action to prevent further damage, a challenge which forces him and Beka to set aside their differences. Sci-fi drama, starring Kevin Sorbo

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A heroic squire pretends to be a knight and tries to convince King Arthur to send him on a perilous quest to recapture legendary sword Excalibur from the clutches of a vicious Viking raiding party. Stephen Moyer, Edward Fox, Katherine Heigl and Joanna Lumley star, and there are cameos by models Marcus Schenkenberg and Jodie Kidd, who's uncredited in her appearance as the Lady of the Lake

The vessel is attacked by a mysterious opponent, forcing Dylan to take drastic action to prevent further damage, a challenge which forces him and Beka to set aside their differences. Sci-fi drama, starring Kevin Sorbo

After a volcanic eruption in Iceland, a scientist becomes convinced a series of similar cataclysms is about to occur across the world, potentially wiping out the human race. However, he faces an uphill struggle convincing anyone of the danger. Action adventure, starring Xander Berkeley and Amy Jo Johnson

A pathologist investigates a series of gruesome deaths on a small island. He discovers that an experiment carried out by a group of doctors trying to find a cure for cancer has created a race of mutant creatures that suck the bones from the bodies of their human prey. Horror, starring Peter Cushing and Edward Judd

Two hitmen are betrayed by their employer and one of them is killed, leaving the survivor swearing revenge. His search for the assassin leads him to a police detective investigating the murder of his partner, and they join forces when they realise one man is behind both deaths. Action thriller, starring Sylvester Stallone, Sung Kang and Christian Slater