Set in Cardiff, the high-octane new episodes take Torchwood on journeys to the 51st Century and World War I. The team battle a rogue Time Agent, investigate alien sleeper cells, save a stranded creature from horrific abuse, and come face to face with an entity that may well be Death itself.
Jack is back and struggling for power with Gwen, when another time agent come to Cardif and stirs up trouble.
When a burglary turns into a slaughter, Torchwood suspect alien involvement. However, when the investigation escalates into a city-wide assault, Captain Jack realises that the whole planet is in danger.
Toshiko falls for a handsome soldier trapped out of his time, who unwittingly holds the key to saving the world. With an old hospital haunted by ghosts from 1918, a crisis foreseen by Torchwood 90 years ago is about to reach its climax. Time zones are colliding, but, with life-and-death decisions to be made, will Torchwood be able to stop an explosive end for the city of Cardiff?
Rhys discovers the truth about Torchwood and becomes part of the team as they investigate a mysterious alien meat supply. With Rhys in increasing danger Gwen is under pressure like never before. Will Rhys go too far? Will Jack ask too much of him? And can Torchwood save the alien from being used as cheap meat?
An alien with the power to change memories infiltrates Torchwood - can the team save themselves before it's too late? With Captain Jack caught up in memories of his lost family, and Gwen struggling to remember Rhys, it takes Jack's love of Ianto to reveal the truth. But there's always a price to pay.
Captain Jack calls in Martha Jones to investigate mysterious deaths. When the trail leads to a sinister medical testing center Martha must go undercover. But have Torchwood underestimated how far the testing centre will go to find medical breakthroughs? How safe are any of Torchwood?
Deep in shock, the Torchwood team has to face their darkest hour. However, in an effort to put things right, Captain Jack Harkness unleashes a primal force that uses Torchwood as a conduit to wreck havoc across Earth, aided by the Weevils and their newly-appointed King.
A victim of his newfound circumstances, Owen Harper believes he needs absolution. Will the lonely girl on the rooftop help him, or will it be a mission to the retrieve an alien device that is proving more lethal by the second? And how far will Toshiko go to help him?
The night before her wedding, Gwen is juggling work with her hen night, when an alien shapeshifter leaves her carrying more than she bargained for. As everyone gathers for the ceremony, Jack must destroy her big day, unless one of the three mothers present finds a means to stop him.
When an old cinema re-opens, past horrors emerge to stalk the streets of Cardiff. And as bodies are found, Torchwood must act fast. Who are the Night Travelers? And how can Torchwood capture these mysterious killers?
When a local teenager disappears Gwen is drawn into an investigation that reveals a darker side of Torchwood. Hundreds of people have disappeared without trace, but why is Jack obstructing attempts to find them? The answer seems to lie in the rift. Literally, and as Gwen follows the trail, she makes a shocking discovery.
A booby trapped building explodes and knocks the team unconscious. As their lives flash before their eyes, we learn how each of them was recruited to Torchwood. Capt Jack's initiation into a shocked Victorian Torchwood in1899, Toshiko's daring mission to trade alien technology for her mother's life, how Ianto woo'd Jack with coffee and a flair for alien-catching, and the medical revelation that changed how Owen saw the world.
Captain John returns to have his revenge on Torchwood. Taking Captain Jack prisoner he sends him back in time for a long overdue reunion. Without their leader Torchwood are faced with a city flooded with Weevils, on the brink of destruction. But who is Captain John really working for? Can anyone trust him? And how great a price must Torchwood pay to save the city?