The Polish national chess squad, the 'Golden Team', won the world chess championship in Hamburg in 1930, and was renamed by the German press as the 'Bombenmannschaft' ('Bomber Crew'). The film focuses on team leader, Akiba Rubinstein, alongside his fellow players Dawid Przepiórka, Ksawery Tartakower, Mieczyslaw Najdorf, Paulin Frydman and Kazimierz Makarczyk. They battle to win the trophy as well as dealing with the mental illness of Rubinstein and the outbreak of World War II. The film tracks the fate of the Polish players, some of whom are Jewish, as the Nazis occupy Poland.
A member of a nationalist group in Warsaw begins a forbidden romance with a passionate, left-wing activist, leading to a series of surprising events.