TV Guide Syfy Tuesday

Matt inadvertently brings back a mysterious woman trying to escape through an anomaly ARC is investigating, but its sealing off means she has been left stranded - along with two undetected arboreal dinosaurs. Later, after Abby and Becker have managed to corner one of the deadly creatures in a theatre, Matt and the woman are forced to undergo a terrifying confrontation with the remaining beast. Hannah Spearritt, Ciaran McMenamin and Ruth Bradley star

Western drama, starring Melanie Scrofano as the great-great-granddaughter of Wyatt Earp, who inherits his mythic abilities, his famous gun and his old enemies - demons. In the opening episode, Wynonna returns to her home town, only to find it overrun with the ghosts of the criminals Wyatt himself once dispatched

As disturbing events in the world's oceans mount up, scientists realise that an unknown species could threaten humanity's fragile existence for ever. Sci-fi thriller, starring Alexander Karim, Cécile de France and Leonie Benesch

Troi's mother falls in love with a scientist from a planet where inhabitants are expected to die at 60, and persuades him to defy his people by living - unwittingly pushing the Enterprise to the brink of war. Guest starring Majel Barrett

In the first of a three-part story, the crew members are assigned to escort an ambassador to the planet of Babel for peace talks. They are taken off course, however, when they intercept a distress call from Shran, who claims his ship was attacked by the Tellarites. Jeffrey Combs guest stars

Bashir and Dax land on a planet where the inhabitants all suffer from an incurable disease. The doctor is driven to find a remedy - but must first contend with the suspicions and hostility of the people. Starring Alexander Siddig and Terry Farrell

A school detention class is thrown into chaos when a teacher is killed and the pupils run riot - unaware that a deadly therocephalian is stalking the corridors looking for its next meal. ARC's attempts to capture the creature are hampered when youngsters hack into the automatic locking system, but the school lab proves invaluable when an even greater threat emerges. Elsewhere, Abby's menagerie is under threat. Hannah Spearritt and Andrew-Lee Potts star

Connor and Abby are sent to investigate unusual anomaly signals in a coastal village, where they uncover the existence of a supposedly mythical labyrinthodont that has turned its attentions to the local fishermen after attacking cows. Back at ARC, Lester and Jess learn that Emily has been kidnapped by Ethan, prompting Matt to make a dash to a cemetery - where he faces a difficult choice. Hannah Spearritt and Andrew-Lee Potts star

Daniel is presumed dead after an alien abducts him and sends the rest of the team home. Guest starring Armin Shimerman

In the first of a three-part story, the crew members are assigned to escort an ambassador to the planet of Babel for peace talks. They are taken off course, however, when they intercept a distress call from Shran, who claims his ship was attacked by the Tellarites. Jeffrey Combs guest stars

A school detention class is thrown into chaos when a teacher is killed and the pupils run riot - unaware that a deadly therocephalian is stalking the corridors looking for its next meal. ARC's attempts to capture the creature are hampered when youngsters hack into the automatic locking system, but the school lab proves invaluable when an even greater threat emerges. Elsewhere, Abby's menagerie is under threat. Hannah Spearritt and Andrew-Lee Potts star

Connor and Abby are sent to investigate unusual anomaly signals in a coastal village, where they uncover the existence of a supposedly mythical labyrinthodont that has turned its attentions to the local fishermen after attacking cows. Back at ARC, Lester and Jess learn that Emily has been kidnapped by Ethan, prompting Matt to make a dash to a cemetery - where he faces a difficult choice. Hannah Spearritt and Andrew-Lee Potts star

After cursed gambler Doc Holliday unleashes a particularly foul demon who proceeds to target her sister, Wynonna attempts to find somewhere safe for her and Waverly to stay. However, given the Earps' history with supernatural forces, the family home may well prove not be the haven Wynonna thinks it is. Western drama, starring Melanie Scrofano