Professor Valery Legasov realizes the situation is not getting under control, as the nomenclature and military seem to assume. At the part summit, he gets the green light from Gorbachov in person to do everything necessary, requisitioning all required means, to stop the open reactor contaminating not only the surrounding area (wide evacuation is still denied) but also the drinking water in the vast Dnjepr basin with 50 million residents. He encourages the Belorussian scientist to continue questions terminal survivors while they can talk to reconstruct how the disaster happened, yielding an assumed impossibility having occurred. When she's arrested by the KGB, Legasov gets her released on his responsibility. Meanwhile coals miners are assigned to dig a tunnel straight under the reactor, by hand despite scorching heat, so they go naked 'the ancestral way', assuming protective gear won't really give them a survival change.
Did You Know?
It was believed that the three volunteer divers, Alexei Ananenko (mechanical engineer), Valeri Bespalov (senior engineer) and Boris Baranov (shift supervisor), who opened the gates in order prevent a further catastrophic nuclear meltdown would almost certainly die from severe radiation exposure. It transpired that all three survived after a period of hospitalization, and two were still living to the release of this series. Baranov died of a heart attack in 2005. See more
The aerial view at 35:09 is quoted to be happening in September, but at this time a large part of the Sarcophagus was already built, including the Cascade wall, while in the series none of these structures are visible. See more
Is it possible that the water has already killed them?