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The Worst Episodes of The Undeclared War

Every episode of The Undeclared War ranked from worst to best. Explore the Worst Episodes of The Undeclared War!

Worst episode
S2E3 Episode 3
7.0137 votes
Best episode
S2E6 Episode 6
7.9126 votes
Top season
Season 2
7.3avg
Binge time
9h 32m
12 episodes
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons2

All12

Episode Rankings

  1. #1 Worst Episode
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    The Undeclared War Season 2 Episode 3 - Episode 3
    7.0/10(137 votes)

    S2:E3

    Barbara faces an impossible decision when her charming ex-boyfriend Nicky Chan re-appears.

    Director:Unknown
    Writer:Unknown

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  2. The Undeclared War Season 2 Episode 2 - Episode 2
    7.0/10(133 votes)

    S2:E2

    Vadim finds himself working for the Chinese. Danny and Roz clash, and the mole hunt is on.

    Director:Unknown
    Writer:Unknown

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  3. The Undeclared War Season 1 Episode 1 - Episode 1
    7.1/10(500 votes)

    S1:E1

    A young intern's first day at GCHQ coincides with a major cyberattack on the UK. To win her superiors' trust, she breaks ranks to analyse the malware code without permission and uncovers a greater threat missed by others.

    Director:Peter Kosminsky
    Writers:Amelia Spencer, Peter Kosminsky, Adam Patterson, Declan Lawn

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  4. The Undeclared War Season 1 Episode 2 - Episode 2
    7.1/10(390 votes)

    S1:E2

    Saara befriends John, a veteran GCHQ staffer, and seeks help from Gabriel in decrypting a message in the virus. Danny signs off on Saara attending a cyber conference with US agent Kathy, aware that Russian intelligence will also be there.

    Director:Unknown
    Writer:Unknown

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  5. The Undeclared War Season 1 Episode 4 - Episode 4
    7.1/10(322 votes)

    S1:E4

    With Saara in a difficult position, a revelation forces her hand. Marina moves to London.

    Director:Unknown
    Writer:Unknown

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  6. The Undeclared War Season 1 Episode 5 - Episode 5
    7.1/10(317 votes)

    S1:E5

    Signs of irregularity in the UK general election result prompt political unrest, and the nation's relationship with its allies is threatened. Saara makes a devastating discovery.

    Director:Unknown
    Writer:Unknown

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    The 20 BEST Episodes of The Undeclared War

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  7. The Undeclared War Season 2 Episode 1 - Episode 1
    7.1/10(162 votes)

    S2:E1

    As Danny deals with the fallout from the Russian cyber-attack, a bold new threat emerges.

    Director:Unknown
    Writer:Unknown

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  8. The Undeclared War Season 1 Episode 3 - Episode 3
    7.2/10(369 votes)

    S1:E3

    Vadim returns to Russia where his allegiances are tested, leading him to a risky stunt.

    Director:Unknown
    Writer:Unknown

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  9. The Undeclared War Season 1 Episode 6 - Episode 6
    7.3/10(375 votes)

    S1:E6

    As the true extent of Russia's interference with the UK becomes clear, Saara and her former classmate join forces. Can they uncover the hidden code and prevent a war?

    Director:Unknown
    Writer:Unknown

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  10. The Undeclared War Season 2 Episode 4 - Episode 4
    7.4/10(130 votes)

    S2:E4

    A malware attack on British government departments forces Danny and Roz to work together.

    Director:Unknown
    Writer:Unknown

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  11. The Undeclared War Season 2 Episode 5 - Episode 5
    7.5/10(117 votes)

    S2:E5

    Charlie interrogates Barbara, and Danny discovers a clue that turns his life upside down.

    Director:Unknown
    Writer:Unknown

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  12. The Undeclared War Season 2 Episode 6 - Episode 6
    7.9/10(126 votes)

    S2:E6

    Danny puts everything on the line in order to right some wrongs.

    Director:Unknown
    Writer:Unknown

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Worst Episodes Summary

"Episode 3" is the worst rated episode of The Undeclared War. It scored 7.0/10 from 137 votes. Written and directed by Unknown, it aired on July 28, 2026.

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