Major Leska, who has proven himself as a troop officer in a tank battalion in complicated maneuvers, is to become an instructor. He sees this as a challenge and is looking forward to the new task. But then the decision is made in favor of his friend Hans Helbig, who has just graduated from the military academy with distinction and was once Leska's subordinate. The conflict that erupts between Leska and Hans puts a strain on their working relationship and puts their friendship to the test. They have to prove themselves during an important maneuver.

A well documented re-enaction of the July 20th, 1944 assassination attempt against Hitler, aka Operation Valkyrie.