12 Movies Like The Undeclared War You Need to Watch
Find tense spy dramas, thrillers, and crime picks like The Undeclared War, including Black Doves, Slow Horses, Treason, and more for your next watch.
If you liked the tense spycraft, political tension, and modern intelligence intrigue of The Undeclared War, this list brings together more movies and series that hit the same nerve. You’ll find sharp, grounded thrillers such as Slow Horses, Treason, and The Ipcress File, alongside newer picks like Black Doves, The Veil, and Graveyard. The mix also includes crime-driven drama and action with The Independent, giving you plenty of angles if you want secrets, double-crosses, and high-stakes missions. These selections lean into suspense, moral gray areas, and the pressure of working in a world where every answer creates a new problem. Whether you want a fast binge or a slower, more atmospheric watch, this page is built to point you toward the best fits.
-
01
Black Doves
action · drama · mystery · thriller
When a spy posing as a politician's wife learns her lover has been murdered, an old assassin friend joins her on a quest for truth — and vengeance.
Directed by Julian Farino, Alex Gabassi, Lisa Gunning, Kieron HawkesCast Keira Knightley, Ben Whishaw, Sarah Lancashire, Andrew Buchan, Andrew KojiNetflix -
02
Slow Horses
drama · thriller
Follow a dysfunctional team of MI5 agents—and their obnoxious boss, the notorious Jackson Lamb—as they navigate the espionage world's smoke and mirrors to defend England from sinister forces.
Directed by Adam Randall, Saul Metzstein, James Hawes, Jeremy Lovering, Robert McKillopCast Gary Oldman, Jack Lowden, Kristin Scott Thomas, Saskia Reeves, Christopher ChungApple TV Plus -
03
The Veil
thriller
Two women play a deadly game of truth and lies on the road from Istanbul to Paris and London. One woman has a secret, the other a mission to reveal it before thousands of lives are lost. In the shadows, mission controllers at the CIA and French DGSE must put differences aside and work together to avert potential disaster.
Directed by Daina Reid, Damon ThomasCast Elisabeth Moss, Yumna Marwan, Dali Benssalah, Josh Charles, Thibault de MontalembertHulu -
04
Graveyard
crime · drama · mystery · thriller
Police Commissioner Önem leads a special investigations unit that solves tough cases involving violence against women.
Directed by Abdullah Oguz, Ömer BaykulCast Birce Akalay, Olgun Toker, Şehsuvar Aktaş, Hakan Meriçliler, Sezgin UzunbekiroğluNetflix -
05
Treason
action · drama · thriller
An MI6 deputy's bright future takes a sharp turn after a reunion with a Russian spy forces him to question his entire life.
Directed by Louise Hooper, Sarah O'GormanCast Olga Kurylenko, Oona Chaplin, Ciarán Hinds, Charlie Cox, Beau GadsdonNetflix -
06
The Ipcress File
drama · thriller
As the Cold War rages, ex-smuggler turned reluctant spy Harry Palmer finds himself at the centre of a dangerous undercover mission, on which he must use his links to find a missing British nuclear scientist.
Directed by James WatkinsCast Joe Cole, Lucy Boynton, Tom Hollander, Ashley Thomas, Paul HigginsAMC+ -
07
The Independent
crime · mystery · thriller
It's the final weeks of the most consequential presidential election in history. America is poised to elect either its first female president or its first viable independent candidate. Reporting history as it's made, an idealistic young journalist teams up with her idol, legendary journalist Nick Booker, to uncover a conspiracy that places the fate of the election, and the country, in their hands.
Directed by Amy RiceCast Jodie Turner-Smith, Luke Kirby, Ali Marsh, Brandon Elsey, Julianne ArrietaPeacock Premium -
08
Lioness
action · drama · thriller
Cruz Manuelos, a rough-around-the-edges but passionate young Marine, is recruited to join the CIA's Lioness Engagement Team to help bring down a terrorist organization from within. Joe, the station chief of the Lioness program, is tasked with training, managing and leading her female undercover operatives.
Directed by Michael Friedman, John Hillcoat, Stephen Kay, Anthony Byrne, Paul CameronCast Zoe Saldaña, Laysla De Oliveira, Dave Annable, Jill Wagner, LaMonica GarrettParamount Plus -
09
The Agency: Central Intelligence
drama · thriller
Covert CIA agent Martian is ordered to abandon his undercover life and return to London Station. When the love he left behind unexpectedly reappears, their romance reignites, pitting his career, his real identity and his mission against his heart while hurling them both into a deadly game of international intrigue and espionage.
Directed by Neil Burger, Grant Heslov, Zetna Fuentes, Philip Martin, Joe WrightCast Michael Fassbender, Jeffrey Wright, Jodie Turner-Smith, Katherine Waterston, Harriet Sansom HarrisParamount Plus -
10
The Marked Heart
drama · mystery · thriller
A man hell-bent on exacting revenge on the organ trafficking organization that murdered his wife becomes involved with the woman who received her heart.
Directed by Andres Beltran, Camilo VegaCast Michel Brown, Ana Lucía Domínguez, Sebastián Martínez, Valeria Emiliani, Moisés ArizmendiNetflix -
11
Shining Girls
crime · drama · mystery · sci-fi · thriller
Years after a brutal attack left her in a constantly shifting reality, Kirby Mazrachi learns that a recent murder is linked to her assault. She teams with veteran reporter Dan Velazquez to understand her ever-changing present—and confront her past.
Directed by Daina Reid, Michelle MacLaren, Elisabeth MossCast Elisabeth Moss, Wagner Moura, Phillipa Soo, Chris Chalk, Amy BrennemanApple TV Plus -
12
The Diplomat
drama · thriller
Amid an international crisis, a US diplomat contends with her high-profile job as ambassador to the UK and her strained marriage to a political star.
Directed by Alex Graves, Liza Johnson, Tucker Gates, Andrew Bernstein, Simon Cellan JonesCast Keri Russell, Rufus Sewell, David Gyasi, Ali Ahn, Rory KinnearNetflix
Wrapping Up
Whether you came for espionage, conspiracy, or that calm-before-the-storm tension, these picks offer a strong next watch. From Black Doves and Slow Horses to Treason and The Veil, each title brings its own spin on danger, loyalty, and secrets under pressure. If you’re building a watchlist around movies like The Undeclared War, this page should make the search a lot easier. Bookmark it and come back when you want another smart thriller recommendation. We update this page regularly so you’ll always have fresh options to explore.
Frequently Asked Questions
What makes these movies similar to The Undeclared War?
These picks were matched by tone, themes, and story style using a similarity model trained on plot synopses, genres, and cast — not just shared genre tags — so the connection runs deeper than a simple category match.
Related Guides
Last updated: September 4, 2026