Chernobyl is a nuclear power plant in Ukraine that was the site of a disastrous nuclear accident on April 26, 1986. A routine test at the power plant went horribly wrong, and two massive, Chernobyl: Created by Craig Mazin. With Jessie Buckley, Jared Harris, Stellan Skarsgård, Adam Nagaitis. In April 1986, the city of Chernobyl in the Soviet Union suffers one of the worst nuclear disasters in the history of mankind. Consequently, many heroes put their lives on the line in the following days, weeks and months., On 26 April 1986, the Number Four reactor at the Chornobyl Nuclear Power Plant in what then was the Soviet Union during improper testing at low-power, resulted in loss of control that led to an explosion and fire that demolished the reactor building and released large amounts of radiation into the atmosphere., In the early morning hours of April 26, 1986, the Chernobyl Nuclear Power Plant in Ukraine (formerly part of the Soviet Union) exploded, creating what many consider the worst nuclear disaster the, On April 25 and 26, 1986, the worst nuclear accident in history unfolded in what is now northern Ukraine as a reactor at a nuclear power plant exploded and burned. Shrouded in secrecy,, On 26th April 1986, a routine safety test went catastrophically wrong and triggered the worst nuclear accident of all time. The incident at the Chernobyl Nuclear Power Plant near Pripyat, Ukraine led to the release of 400 times more radiation than the atomic bomb dropped on Hiroshima during WW2..