In the early days of World War II, with the fall of France imminent and the British Empire facing its darkest hour, Winston Churchill becomes the newly-appointed British Prime Minister. Despite his reputation as a maverick politician and an uncompromising leader, Churchill is met with skepticism and opposition from his own party and the King. The threat of Nazi Germany looms large, with the British Army stranded at Dunkirk and the rest of Europe quickly succumbing to Hitler’s forces. Faced with the possibility of a disastrous treaty with Germany and the annihilation of British independence, Churchill finds himself contending with the pressing choice between negotiating a peace settlement with a seemingly invincible enemy or standing firm to fight for the ideals, liberty, and freedom of a nation.

As the relentless march of the German army continues, Churchill must withstand his darkest hour and rally a nation against seemingly insurmountable odds. Pressure mounts from his political rivals to capitulate and negotiate peace with Hitler, leading to a crisis of confidence. Churchill's unyielding spirit is tested as he explores the full gravity of his role and the impact his decision will have on the future of the world. In these crucial days, Churchill is bolstered by his passionate and supportive wife, Clemmie, who serves as his confidante and advisor. Meanwhile, he must also communicate with the British public, instilling in them the courage and fortitude to face the uncertainty and fear of the wartime experience.