- Previous episode S01E01 - 1:23:45
- Number S01E02
- Director Johan Renck
- Writer Craig Mazin
Please Remain Calm
With untold millions at risk after the Chernobyl explosion, nuclear physicist Ulana Khomyuk makes a desperate attempt to reach Valery Legasov, a leading Soviet nuclear physicist, and warn him about the threat of second explosion that could devastate the continent.