On international OTT platforms, Tehran is one of the most exciting espionage thrillers, conveying a tense, high-stakes portrayal of Mossad’s work deep within Iranian borders. Tamar Rabinyan, a hacker-agent with an intense mission, executes incredible undercover operations. Audiences are excited for Season 4; they anticipate new nuclear intrigue, clandestine alliances, personal betrayals, and heart-pounding geopolitical drama during the continued tension between Iran & Israel, following the exciting plot twists and emotional stakes in Season 3’s conclusion earlier in 2026.
Tehran Season 4: Release date speculation
The critically-acclaimed espionage drama Tehran will return for a new season. The award-winning show follows Mossad hacker-agent Tamar Rabinyan as she conducts covert missions inside Iran. Apple TV+ has renewed the series for a fourth season.
The renewal was announced by the streamer in December 2025, along with the premiere of season three. Season four is currently in production, with filming taking place in Greece.
However, production of Season Four has suffered a major setback. Co-creator and executive producer Dana Eden committed suicide in February 2026, leaving an uncertain future for the show.
There is currently no premiere date for Season Four.
Season three premiered in January 2026 on Apple TV+, having previously aired on Israeli national television (Kan 11) in late 2024 and early 2025. Its run on Apple TV+ ended on February 28th, 2026.
Barring further setbacks, Season Four will likely be released sometime in 2027, although no date has been set at this time.
Tehran Season 4: Cast
The series is led by Niv Sultan, who plays Mossad operative Tamar Rabinyan and is expected to return for the fourth season.
Other recurring cast members include:
- Shaun Toub
- Shila Ommi
Previous seasons have also featured performances from:
- Shervin Alenabi
- Menashe Noy
- Liraz Charhi
Season 3 introduced Hugh Laurie as Eric Peterson, a South African nuclear inspector. It remains unclear whether Laurie or other newer additions — including Sasson Gabai, Phoenix Raei, and Bahar Pars — will return for the upcoming season.
Tehran Season 4: Plot details
Currently, there is no information available detailing any plot or storyline in season four of the television series.
The show has historically focused on covert intelligence operations, nuclear threats (real or potential), and how these affect the characters personally. Season 3 followed Tamar Holander after she went rogue. As her character attempted to re-establish confidence with Mossad, she also had to build new relationships/alliances while participating in dangerous operations due to the nuclear inspection process.
Season Four could very well include elements taken directly from current or future political tensions that occur in the area, as the series consists of high-stakes espionage.