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Valery Legasov, Boris Shcherbina and Ulana Khomyuk risk their lives and reputations to expose the truth about Chernobyl.

Chernobyl

Vichnaya Pamyat

Valery Legasov and Soviet Deputy Prime Minister Boris Shcherbina consider using lunar rovers to remove radioactive debris; Ulana Khomyuk faces government hurdles in determining the truth about the cause of the explosion.

The Happiness of All Mankind

Lyudmilla Ignatenko, a Pripyat resident, ignores warnings about her firefighter husband's contamination; Valery Legasov lays out a decontamination plan, complete with human risks.

Open Wide, O Earth

With untold millions at risk, nuclear physicist Ulana Khomyuk makes a desperate attempt to reach Valery Legasov, a leading Soviet nuclear physicist, and warn him about the threat of a second explosion that could devastate the continent.

Please Remain Calm

Plant workers and firefighters put their lives on the line to control a catastrophic April 1986 explosion at a Soviet nuclear power plant.

1:23:45

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Brave men and women act heroically to mitigate catastrophic damage when the Chernobyl Nuclear Power Plant suffers a nuclear accident on April 26, 1986.

S1 E2 | Please Remain Calm