As the Russians advance through Berlin in the spring of 1945, Adolf Hitler and his remaining military and secretarial staff shelter in his large bunker complex in the centre of the city. His mood swings between completely unjustified optimism that his forces will still break through, and rage against the incompetence and betrayal of his military commanders. Reality does finally start to break through and the Fuhrer and the others in the bunker start to make their final personal preparations for the inevitable.