The Undeclared War

Series 2

2026 · 6 episodes · 4h 41m in all · 1.0/10

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.

Episodes

1. 

   1. Episode 1

   21 Jul 2026 · 48 min · 1.0/10

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

2. 

   2. Episode 2

   22 Jul 2026 · 47 min · 1.0/10

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

3. 

   3. Episode 3

   28 Jul 2026 · 48 min · 1.0/10

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

4. 

   4. Episode 4

   29 Jul 2026 · 48 min · 1.0/10

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

5. 

   5. Episode 5

   4 Aug 2026 · 43 min · 1.0/10

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

6. 

   6. Episode 6

   5 Aug 2026 · 47 min · 1.0/10

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