Prime Video’s thrilling new action spy series, Citadel, continues to captivate audiences with its latest episode, Episode 4, set to release on Friday, May 12, at 12:00 am midnight ET. Boasting a staggering production budget of over US $300 million, this debut season, which premiered on April 28, comprises a total of six episodes, solidifying its position as one of the most expensive TV shows ever created.
The star-studded cast of Citadel brings the story to life, with Richard Madden taking on the roles of Mason Kane and Kyle Conroy, while Priyanka Chopra Jonas portrays the complex characters of Nadia Sinh and Charlotte Vernon. Stanley Tucci delivers a captivating performance as Bernard Orlick, alongside the remarkable talent of Lesley Manville as Dahlia Archer.
Other notable cast members include Osy Ikhile as Carter Spence, Olegar Fedoro as the Russian President, Ashleigh Cummings as Abby Conroy and Brielle, Roland Møller as Anders Silje and Davik Silje, Caoilinn Springall as Hendrix Conroy, and Janis Ahern as Dr. Hudes.
With such an impressive lineup and the series’ significant production investment, Citadel has established itself as a must-watch show for action and espionage enthusiasts. As viewers eagerly anticipate the release of Episode 4, the captivating storyline and exceptional performances continue to elevate Citadel’s status as a groundbreaking television series.
Prime Video’s Citadel episode 4: Mason is suspicious of Nadia’s actions
In the highly anticipated Episode 4 of Citadel, viewers will delve into the aftermath of Mason’s shocking revelation that Citadel was sold by none other than his partner, Nadia. The intricate web of espionage unfolds further as Nadia’s entanglement with fellow spy Carter Spence comes to light, with Carter now held captive by a notorious Portuguese crime boss.
Meanwhile, the situation takes a dangerous turn for Mason’s wife, Abby, who is revealed to be alive. To complicate matters, Bernard, who holds deep affections for Abby, has disclosed sensitive information about her to Dahlia and Anders Silje. The duo is fully aware of Bernard’s feelings, adding an additional layer of intrigue to the unfolding events.
Episode 4 of Citadel is penned by a talented team of writers, including Josh Appelbaum, Bryan Oh, and David Weil. Their expert storytelling ensures that viewers will be on the edge of their seats as the intricate plot continues to unravel, raising the stakes and intensifying the suspense of this gripping spy thriller.

Citadel episode 3’s synopsis and details
Directed by Newton Thomas Sigel and Jessica Yu, Episode 3 of Citadel, titled “Infinite Shadows,” made its debut on May 5, 2023. The episode was skillfully written by David Weil and Melissa Glenn, delivering another thrilling installment to the series.
Titled “Infinite Shadows,” Episode 3 takes viewers on a captivating journey as Kyle and Nadia find themselves seeking refuge at an old safehouse. As they navigate their surroundings, fragments of their shared past begin to resurface, providing tantalizing hints. Their path leads them to the realization that a former ally, vital to thwarting the dangerous organization Manticore, is imprisoned in a high-security facility located in Morocco.
To accomplish their rescue mission, Kyle and Nadia must forge an alliance with a local crime boss, setting the stage for an intricate and risky endeavor. However, their plans are soon jeopardized as long-held secrets from their past come to light, further intensifying the stakes.
The official synopsis for Episode 3 encapsulates the episode’s essence: a race against time filled with intrigue, discovery, and the weight of personal history. As Kyle and Nadia confront their own demons, viewers are taken on a suspenseful journey that explores the complexities of their characters and the impact of their intertwined past.
What is Citadel web series about?
Citadel, a thrilling series created by Josh Appelbaum, Bryan Oh, and David Weil, delves into the captivating world of two spies named Mason Kane and Nadia Sinh. Together, they serve as operatives for the esteemed intelligence organization known as Citadel.
According to the official synopsis provided by Prime Video, Citadel presents a gripping premise: What if you lost your memory? What if a spy remained unaware of their true identity? Mason Kane (Richard Madden) and Nadia Sinh (Priyanka Chopra Jonas), former top agents of Citadel, had their minds wiped years ago.
However, they are unexpectedly called back into action when malevolent forces from the past resurface. Guided by the experienced spymaster Bernard Orlick (Stanley Tucci), these former lovers must unlock the secrets of their past to safeguard the future.
In an interview with Collider, Richard Madden expressed his excitement for fans to witness the season finale. He eagerly anticipates the culmination of the intricate storytelling, remarking on the multitude of seeds planted throughout the series and the interweaving timelines.

According to Madden, the sixth episode is where everything converges, resulting in satisfying payoffs. While each episode contributes significantly to the journey, he holds a special fondness for Episode 6.
Citadel boasts an impressive lineup of executive producers, including Josh Appelbaum, André Nemec, Mike Larocca, Angela Russo-Otstot, Anthony Russo, Joe Russo, David Weil, and several others. Their collective expertise and creative vision contribute to the show’s success.
Fans can mark their calendars for the release of Episode 4, which is scheduled to premiere on Friday, May 12, at 12:00 am ET exclusively on Prime Video. With each episode, Citadel continues to deliver an enthralling narrative that keeps viewers on the edge of their seats.