As his country is gripped by revolution and war, a Ukrainian victim of the Chornobyl nuclear disaster discovers a dark secret and must decide whether to risk his life and play his part in the revolution by revealing it.

Fedor Alexandrovich
as Himself

Andrei Alexandrovich
as Fedor's Father

Igor Alexandrovich
as Fedor's Son

Natalia Baranovskaya
as Chernobyl Historian

Andrei Bilyk
as Chernobyl Chief Engineer

Fedor Chebanenko
as Duga Data Commander

Charlie D'Agata
as Himself - CBS News Foreign Correspondent (archive footage)

Anatoly Duatlov
as Chernobyl Engineer

Fedor Dubrovka
as Radar Professor

Mikhail Gorbachev
as Former President Russia (archive footage)