"chernobyl": 1:23:45(2019)

: While instruments on-site initially capped at 3.6 R/h, the actual radiation at the core was estimated at roughly 20,000 roentgens per hour , delivering a lethal dose in minutes. Production Credits Creator/Writer : Craig Mazin Director : Johan Renck

The premiere episode of the HBO/Sky miniseries "Chernobyl," titled "1:23:45," originally aired on May 6, 2019. The title refers to the exact moment on April 26, 1986 , when Reactor No. 4 at the Chernobyl Nuclear Power Plant exploded in the Ukrainian SSR, marking the beginning of the world's worst man-made nuclear catastrophe . Plot Overview "Chernobyl" 1:23:45(2019)

: Soviet chemist Valery Legasov (played by Jared Harris) records memoirs exposing the truth behind the disaster before taking his own life at exactly 1:23:45 AM, coinciding with the disaster's anniversary. : While instruments on-site initially capped at 3

: Deputy Chief Engineer Anatoly Dyatlov (Paul Ritter) refuses to believe the core has exploded, famously dismissing radiation readings of 3.6 roentgen/hour as "not great, not terrible," unaware the actual levels are thousands of times higher. Key Moments and Themes 4 at the Chernobyl Nuclear Power Plant exploded