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

Lyudmilla ignores warnings about her firefighter husband’s contamination; Legasov lays out a decontamination plan, complete with human risks.

Legasov and Shcherbina consider using lunar rovers to remove radioactive debris, while Khomyuk faces government hurdles in determining the truth about the cause of the explosion.

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