Chernobyl (2019)
68 user 7 critic

Please Remain Calm 

With untold millions at risk, Ulana makes a desperate attempt to reach Valery and warn him about the threat of a second explosion.


Johan Renck


Craig Mazin, Craig Mazin (created by)




Episode cast overview, first billed only:
Emily Watson ... Ulana Khomyuk
Matthew Needham ... Dmitri
Nadia Clifford Nadia Clifford ... Dr. Svetlana Zinchenko
Rosie Sheehy Rosie Sheehy ... Nurse Pripyat
Sam Troughton ... Alexandr Akimov
Robert Emms ... Leonid Toptunov
Karl Davies ... Viktor Proskuryakov
Ron Cook ... Old Maternity Doctor
Adam Nagaitis ... Vasily Ignatenko
Jessie Buckley ... Lyudmilla Ignatenko
Tomas Zaibus Tomas Zaibus ... Soldier (Hospital)
Jared Harris ... Valery Legasov
Amanda Drew Amanda Drew ... Kremlin Aide Female
Stellan Skarsgård ... Boris Shcherbina
David Dencik ... Mikhail Gorbachev


With untold millions at risk, Ulana makes a desperate attempt to reach Valery and warn him about the threat of a second explosion.

Plot Summary | Plot Synopsis

Plot Keywords:

ukraine | See All (1) »


TV-MA | See all certifications »

Did You Know?


This is the only episode in the miniseries where an American makes an appearance-- a television briefly shows news footage of Canadian-born, American news anchor Peter Jennings, reporting on the Chernobyl disaster. Though Jennings never visited Chernobyl, he did (like many of the Russian-born characters in the series) also die of cancer, in 2005. See more »


About 35 minutes into the episode, the helicopters starting the air-drop operation are shown carrying their loads in cargo-nets. In real life, for the first days of this operation the flight engineers had to push out the sand-sacks by hand. The parachutes that were later used as cargo-nets arrived only on Wednesday. See more »


Plant Employee: Why are reactors 1 and 2 still operating at all? My friend was a security guard that night, and, uh, she's now dying. And we've all heard about the firemen. And now you want us to swim underneath a burning reactor? Do you even know how contaminated it is?
Valery Legasov: I... I don't have an exact number.
Plant Employee: You don't need an exact number to know if it'll kill us. But you can't even tell us that. Why should we do this, for what, 400 rubles?
Boris Shcherbina: You'll do it because it must be done. You'll do it because nobody else can. ...
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Performed by Mikhail Shufutinskiy
(Played at the hotel bar where Legasov goes to get a drink)
See more »

User Reviews

Tense, gripping, and exciting
14 May 2019 | by lusitanamike2See all my reviews

From start to finish, the episode flows very nicely with its haunting score and wonderful cinematography. The acting is flawless and reveals how hectic the whole situation is. I absolutely loved the ending, it puts you on edge of your seat. This is the real deal, well done HBO

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Release Date:

13 May 2019 (USA) See more »

Filming Locations:

Kedainiai, Lithuania See more »

Company Credits

Production Co:

Sister Pictures See more »
Show more on IMDbPro »

Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

2.00 : 1
See full technical specs »

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