At the end of the War of Secession, the President of the United States, Garfield, takes it upon himself to resolve all the problems that gave rise to the conflict and to restore law and order to the Union. During a propaganda trip to the South, where resentments do not yet seem to have subsided, Garfield is assassinated by unknown persons in Dallas, Texas. The culprits are identified in William Willer and Jack Donovan, two Texans who during the war had fought for the Northern army, under the orders of the then Colonel Garfield. While Donovan is killed during the transfer to prison, Willer, managed to free himself, begins on his own the investigation of the crime and, thanks to the help of McDonald, secretary of the assassinated president, discovers and punishes those really responsible for the death of Garfield.
Giuliano Gemma: Bill Willer
Warren Vanders: Arthur McDonald
María Cuadra: Lucretia Garfield
Ray Saunders: Jack Donavan
Fernando Rey: Pinkerton
Luis Bacalov soundtrack
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