You can catch the full six episodes of Season 1 on several platforms: Peacock (USA) Apple TV (UK/International) Channel 4 (UK)
As the series progresses, Saara and Vadim realize that their actions are the only thing standing between a data war and a catastrophic loss of life. Key Details & Cast
The story centers on Saara Parvin, a 21-year-old intern whose first day at GCHQ coincides with a devastating security breach. To win her superiors' trust, she breaks protocol to analyze malware code and discovers a hidden, far more dangerous threat that others missed. The narrative is split between two perspectives: The.Undeclared.War.S01.WEBRip.x264-ION10[eztv.re]
: Originally aired on Channel 4 in the UK and is available on Peacock in the US.
: A second season was officially announced in February 2025, though no release date has been confirmed as of early 2026. Where to Watch You can catch the full six episodes of
Created and written by Peter Kosminsky, The Undeclared War is a gripping that explores the invisible frontier of modern conflict. Set in 2024 against the backdrop of a high-stakes British general election, the series follows a team of analysts at GCHQ—the UK’s intelligence agency—as they scramble to ward off a massive cyber-attack on the country’s electoral system. The Core Plot
: Vadim Trusov, a talented Russian coder coerced by the FSB to work on a cyber-weapon project. The narrative is split between two perspectives: :
Are you interested in a or more details on a specific character ? The Undeclared War Season 1 Trailer