Prime Video has had a massive year, with flagship shows like The Boys wrapping up after five seasons and Invincible returning for a fourth season. But quietly, one of its most expensive gambles is paying off: Citadel Season 2, which dropped all episodes at once a few weeks ago, has climbed to the platform's top 10 most-watched titles in May 2026.
The spy thriller, which cost an estimated $300 million to produce, premiered its first season back in 2023 to middling reviews. Yet, without a major marketing push, the second season has found an audience. The show's binge-release strategy—no weekly wait—hasn't hurt its momentum, as it remains a must-watch for subscribers.
Starring Richard Madden (Robb Stark from Game of Thrones) and Priyanka Chopra Jonas (who also headlined the Prime Video hit The Bluff), the series also features Stanley Tucci, recently seen in the acclaimed drama Conclave and the blockbuster The Devil Wears Prada 2. The ensemble cast has drawn viewers despite the show's rocky critical reception.
Prime Video's other heavy hitters include Reacher, starring Alan Ritchson, which is already renewed for Season 4 and developing Season 5. Meanwhile, The Lord of the Rings: The Rings of Power remains the platform's most expensive show at over $50 million per episode. But Citadel's streaming success is a quiet win for the service.
The fate of Citadel beyond Season 2 is uncertain. Given its massive budget, a third season would need to shatter expectations. For now, fans can binge both seasons on Prime Video. For more on Prime Video's lineup, check out 'Off Campus' Scores Steamy 93% RT and 'ZeroZeroZero'—a 94% RT Crime Thriller.
If you're into thrillers, don't miss our list of Top 10 Psychological Thrillers of the Last 20 Years or the Best Sci-Fi Thrillers of the Last 15 Years. And for more streaming news, stay tuned to ShowtimeSpot.
