The Undeclared War

Series Similar to The Undeclared War

If you enjoyed The Undeclared War, these series share similar themes, tone, and quality. Each recommendation is scored on genre overlap, tonal match, and critical acclaim.

1. Fearless

   2017 · Drama, Thriller · ended

   Recommended for similar Thriller profile.

   Emma Banville is a solicitor known for defending lost causes. She's investigating the killing of a schoolgirl in East Anglia and trying to free the man she thinks was wrongly convicted of the girl's murder. As she digs ever deeper into the case, she begins to sense powerful forces, in the police and the intelligence services at home and abroad, who want to stop her uncovering the truth.

2. London Spy

   2015 · Drama, Crime, Thriller · ended

   Recommended for similar Thriller profile, hidden gem.

   A romance between an MI6 code genius and an ordinary man promises happiness. But tragedy strikes when the spy dies in suspicious circumstances, forcing his lover to pursue the truth behind his death.

3. The Last Enemy

   2008 · Drama, Romance, Thriller · ended

   Recommended for similar Thriller profile.

   A man whose search for the truth about his brother's death catapults him into an international conspiracy - and a passionate love affair. The Last Enemy takes an arresting and compelling look at how technology could transform Britain into a surveillance society - threatening human relationships and destroying trust.

4. Okkupert

   2015 · Drama, Thriller · ended

   Recommended for similar Thriller profile, hidden gem.

   In the near future, Norway is occupied by Russia on behalf of the European Union, due to the fact that the newly elected environmental friendly Norwegian government has stopped the all important oil- and gas-production in the North Sea.

5. Secret City

   2016 · Drama, Thriller · ended

   Recommended for similar Thriller profile.

   Amidst rising tension between China and America, Canberra press gallery journalist Harriet Dunkley forces her way closer to the truth, uncovering a secret city of interlocked conspiracies which will threaten her career, her life and endangers the freedom of every Australian.

6. Zero Day

   2025 · Thriller · ended

   Recommended for similar Thriller profile.

   George Mullen, a massively popular, but complicated, former American President is pulled from retirement to head a commission tasked with investigating a devastating global cyber-attack.Zero Day asks the question on everyone's mind — how do we find truth in a world in crisis, one seemingly being torn apart by forces outside our control? And in an era rife with conspiracy theory and subterfuge, how much of those forces are products of our own doing, perhaps even of our own imagining?

7. The Code

   2014 · Drama, Thriller · ended

   Recommended for similar Thriller profile, highly rated (8).

   Stretching from the spectacular red desert of Australia's outback to the cool corridors of power in Canberra, The Code tells the story of two very different brothers who are handed information those in the highest political echelons will kill to keep secret.

8. The Capture

   2019 · Drama, Thriller, Espionage · returning

   Recommended for similar Thriller profile.

   While disentangling misinformation from truth in an era of deepfakes, alternative facts and ubiquitous surveillance, investigations of damning video evidence calls into question whether seeing is deceiving.

9. Line of Duty

   2012 · Drama, Crime, Thriller · returning

   Recommended for similar Thriller profile, highly rated (8.5).

   A drama about the investigations of AC-12, a controversial Police Anti-Corruption Unit.

10. Our Zoo

    2014 · Drama, Thriller · ended

    Recommended for similar Thriller profile, highly rated (8), hidden gem.

    Our Zoo is a drama series based on the true story of the Mottershead family who, in the face of staunch opposition and huge personal sacrifice, founded Chester Zoo in the 1930s.