01 A Mossad agent going undercover in Iran to disable a nuclear reactor.
10 Best Spy Thriller Series
By Vlad Zakh · June 13, 2026
The Americans is patient and morally complicated, willing to spend a full season on the cost of one lie. Slow Horses is funnier and more cynical about the same genre, and Killing Eve shows the more stylish, international end of it.
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02 A grounded, high-stakes look at British intelligence officers navigating real-world threats.
03 A grad student secretly working as a double agent inside the intelligence agency she thought she served.
04 A French intelligence drama following undercover DGSE agents in the Middle East.
05 A CIA officer navigating a mole hunt inside his own Berlin station.
06 An intelligence operative obsessed with catching a charismatic, brilliant assassin.
07 A CIA officer convinced a returned prisoner of war has been turned by the enemy.
08 A former soldier going undercover to infiltrate a powerful arms dealer's inner circle.
09 A wry, grimy look at MI5's dumping ground for its most disgraced agents.
10 Soviet spies posing as an ordinary American family during the height of the Cold War.