The Undeclared War

Name: The Undeclared War
Genre: Drama, Thriller

Airing
Score:: 72%

Drama
Thriller

Watch on

Channel 4

When does The Undeclared War come out?

The Undeclared War episode 1 airs on Tuesday, July 21, 2026.

Set in 2024, The Undeclared War tracks a leading team of analysts buried in the heart of GCHQ, secretly working to ward off a series of cyber-attacks on the UK in the run up to a general election. When a routine stress test of internet infrastructure goes awry 21-year-old GCHQ intern Saara Parvin suddenly finds herself operating on the invisible frontier of high-stakes cyber warfare.