based on the real life story and incarceration of American intelligent specialist; Reality Leigh Winner, who in 2018 was convicted of 'removing classified material from a government facility and mailing it to a news outlet'.
Summer 1941: Hitler invades the Soviet Union. Convoys of cargo ships with war materials began the perilous journey to Murmansk, and ordinary sailors face the German superiority in the icy Arctic sea, putting their lives at stake.