The Undeclared War poster

The Undeclared War (2022)

Drama · Thriller

In the post-pandemic world of 2024 during an upcoming British general election involving the UK’s first Black Conservative prime minister, a leading team of analysts at the heart of the UK’s NSA-style spy agency GCHQ attempt to ward off a cyber-attack on the country’s electoral system.

IMDb rating: 7.0 (6,685 votes)
Seasons: 2
Streaming (US): Peacock
Language: EN
Type: TV series

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Ratings refreshed Aug 19, 2026 · 2 seasons indexed

Cast

Seasons

Season 1 (2022)

7.33 avg 6 episodes 7.2 → 7.5 49 min avg

Big finale

Season 1 episodes - IMDb ratings
#	Title	Rating	Votes
1	Episode #1.1	7.2	394
2	Episode #1.2	7.3	312
3	Episode #1.3	7.4	294
4	Episode #1.4	7.3	254
5	Episode #1.5	7.3	250
6	Episode #1.6	7.5	298

Season 2 (2026)

7.62 avg 6 episodes 7.6 → 7.9

Big finale

Season 2 episodes - IMDb ratings
#	Title	Rating	Votes
1	Episode #2.1	7.6	43
2	Episode #2.2	7.5	38
3	Episode #2.3	7.3	40
4	Episode #2.4	7.8	35
5	Episode #2.5	7.6	35
6	Episode #2.6	7.9	39