In Nazi Germany, amidst the brutalities of World War II, a group of high-ranking German officers come together with a plan to overthrow Adolf Hitler and dismantle his regime from within. The mastermind behind this secret plot is Colonel Claus von Stauffenberg, a loyal officer who sees the devastating direction in which Hitler is taking Germany and its people. Disillusioned by the war's atrocities and the Führer's tyrannical rule, Stauffenberg decides that action must be taken to stop Hitler and restore peace and stability to their nation. The conspirators devise an operation named Valkyrie, originally intended to manage national crises, intending to use it as a means to assassinate Hitler and seize control of the government.

As Stauffenberg and his co-conspirators meticulously plan the execution of their mission, they face immense challenges and risks at every turn. The operation's success hinges on precise timing and the cooperation of multiple factions within the military and government. Stauffenberg, aware of the personal risks, takes on the critical role of delivering the explosive intended to kill Hitler. With each step, the group navigates a minefield of suspicion and the ever-present danger of discovery by the Gestapo. The destiny of Germany and the outcome of the war lie in the balance as the day of the planned assassination approaches, testing the courage and resolve of the men involved in this daring and desperate plot.