It has already been more than one year since the second season premiered, and almost two years since the third season of The Devil's Hour finished production. Unfortunately, since the show’s return in October 2024, Prime Video has not released any official updates about Season 3. As a result, some fans are now speculating about a possible silent cancellation due to low viewership, while others believe production issues may be responsible for the long delay. However, since Season 3 was officially renewed alongside Season 2 and the two seasons were filmed back-to-back, a cancellation seems highly unlikely.
The Devil's Hour Season 3 is the third and final season of the British psychological thriller/supernatural drama series created by Tom Moran. If we go by the pattern of the previous season's premiere, we can expect it to arrive later this year. To be more precise, The Devil's Hour Season 3 is likely to release in October 2026 on Prime Video. If I had to guess the release date off the top of my head, I would say the third and final season is 100% coming in October this year.
The series follows Lucy, who wakes every night at exactly 3:33 AM with terrifying visions, amid family struggles and connections to murders. It blends time loops, alternate realities, premonitions, and a cat-and-mouse thriller with Gideon. Season 2 acts as both a prequel and a sequel, revealing more about Gideon's mission against an evil force. Season 3 will conclude the story (envisioned as a trilogy). Jessica Raine has teased "Season 3 Lucy" as a bolder, more Gideon-like version—still driven by love for her son Isaac—leading to unexpected paths.
In season two, Lucy (Jessica Raine) and Gideon (Peter Capaldi) create an uneasy alliance to avert a recurrent tragedy and hunt down an elusive monster. Lucy's secret existence puts her in a split between family and duty, and she finds herself in the crosshairs of her former husband, DI Ravi Dhillon (Nikesh Patel). DS Sam Boyd (Saffron Hocking) is assisting Dhillon in his inquiry, having previously been trained by DI Lucy Chambers. Meanwhile, Isaac (Benjamin Chivers) is experiencing new emotions every day and battling to maintain his equilibrium in a world that denies his presence.
In the fifth and final episode of the second season, an older version of Lucy Chambers, who is suffering from cancer in her detective timeline, visits Gideon Shepherd. She agrees to help him stop the bomber at Rigby's Toyshop on the condition that once they succeed, he will never contact her again and will let her live her life in peace. Gideon accepts the deal. They part ways after he "wakes" her up, restoring her memories and resolve for the mission. In the present timeline, the bomber prepares his deadly backpack filled with nails, sets the timer, and heads toward the toy shop. Meanwhile, Lucy, now fully aligned with Gideon, works alongside him and even involves Ravi Dhillon in the effort. Gideon pursues the bomber into a garage, where he is knocked unconscious. Ravi, badly injured and alone with the bomb, has flashbacks of his life and relationship with Lucy before seemingly dying as the timer counts down. It remains unclear if the bomb fully detonates inside the shop, but the store is evacuated, and the immediate tragedy for the children is at least partially averted in this loop—though at a high cost. After the failed or partially successful attempt, Lucy and Gideon become fugitives hunted by the police. They leave Isaac with Dr. Bennett for safety, with Lucy promising she will return for him. Exhausted and cornered, Gideon insists they must "reset" by dying so they can loop back with their memories intact. Lucy resists desperately as she sets down her gun and prepares to hand herself over to the approaching police. Gideon picks up the weapon and shoots her in the head. He presumably allows himself to be killed or takes his own life shortly after to trigger the reset, explaining that arrest would mean being drugged and losing all their looped memories. With her final breath, Lucy asks about Isaac. In the aftermath, young Isaac is left traumatized and goes to live with the Warren family in their new home.
The second season finale includes a flashforward where an adult Isaac, still wearing his broken blue loop-slipping watch, visits Gideon in prison. He confronts him about the consequences of his meddling with the timeline, describing his own existence as unbound and adrift because of the chaos Gideon created. This ending sets up Season 3 by resetting the loop for another attempt while deepening the emotional stakes around sacrifice, family, and the anomalies created by timeline interference—particularly Isaac's unique, unbound nature. The season blends high-stakes action with profound personal tragedy, leaving viewers with questions about whether true resolution is possible or if the cycles will continue indefinitely.
The cast of the series includes Jessica Raine, Peter Capaldi, Nikesh Patel, Phil Dunster, Meera Syal, Benjamin Chivers, Alex Ferns, Barbara Marten, Thomas Dominique, and Rhiannon Harper-Rafferty. The series is produced by Hartswood Films, penned by Tom Moran, and executive produced by Steven Moffat, Moran, and Sue Vertue.