The BEST episodes of The Undeclared War

Every episode of The Undeclared War ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of The Undeclared War!

In 2024, a GCHQ team works to prevent a series of cyber-attacks before a general election.

Last Updated: 10/17/2024Network: Channel 4Status: Ended

7.91

263 votes

#1 - Episode 6

Season 1 - Episode 6 - Aired 8/4/2022

As the truth becomes clear, Saara and her classmate join forces to prevent a war.

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7.53

258 votes

#2 - Episode 5

Season 1 - Episode 5 - Aired 7/28/2022

The UK general election result prompts unrest, while Saara makes a devastating discovery.

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7.44

255 votes

#3 - Episode 4

Season 1 - Episode 4 - Aired 7/21/2022

With Danny unconvinced by Saara's exchange with a whistleblower, she's in a difficult position, but a revelation from Kathy forces Saara's hand. Meanwhile, Marina takes up a new opportunity in London.

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7.40

345 votes

#4 - Episode 1

Season 1 - Episode 1 - Aired 6/30/2022

Student Saara wins an internship at GCHQ, but when the UK's internet goes down, she finds herself on the frontier of high-stakes cyber warfare.

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7.38

269 votes

#5 - Episode 3

Season 1 - Episode 3 - Aired 7/14/2022

Saara's classmate Vadim returns to St Petersburg. He reluctantly takes a covert job and soon becomes the victim of his own success as his allegiances are put to the test, leading him to a risky stunt.

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7.28

303 votes

#6 - Episode 2

Season 1 - Episode 2 - Aired 7/7/2022

Saara unravels a dubious invitation. Is she getting closer to the truth - or a trap?

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