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The Undeclared War Season 2 poster

The Undeclared War Season 2 Episode release dates & where to watch

Premiered

Tuesday, July 21, 2026

Ended: Wednesday, August 5, 2026

When does The Undeclared War Season 2 come out?

The Undeclared War Season 2 premiered Tuesday, July 21, 2026 on Channel 4 and ended Wednesday, August 5, 2026. The season has 6 episodes.

The elite Malware Department at GCHQ grapples with the aftermath of a devastating Russian cyber-attack. Just when it seems the UK has gained the upper hand, Danny and his team discover a mole in their midst and uncover a far more dangerous threat.

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The Undeclared War Season 2 release schedule

The Undeclared War Season 2 episode release dates
Episode Release date

1. Episode 1

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

Tuesday · 3 months ago

2. Episode 2

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

Wednesday · 3 months ago

3. Episode 3

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

Tuesday · 3 months ago

4. Episode 4

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

Wednesday · 3 months ago

5. Episode 5

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

Tuesday · 3 months ago

6. Episode 6 Finale

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

Wednesday · 3 months ago

The Undeclared War Season 2 FAQ

When does The Undeclared War Season 2 come out?

The Undeclared War Season 2 premiered Tuesday, July 21, 2026 on Channel 4.

How many episodes are in The Undeclared War Season 2?

The Undeclared War Season 2 has 6 episodes.

Are new episodes of The Undeclared War Season 2 released weekly?

New episodes are released daily.

When is the The Undeclared War Season 2 finale?

The The Undeclared War Season 2 finale (Episode 6) aired Wednesday, August 5, 2026.

How do I get notified when new The Undeclared War Season 2 episodes are released?

Download the Streambay app and follow The Undeclared War. You'll get a push notification the moment each new episode is out.

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