The Japanese ambassador is traveling through the Wild West by train, when gangsters hold up the train, to rob a gold shipment. They also carry an ancient Japanese sword the ambassador was carrying as a present for the US president. The ambassador's bodyguard (Toshiro Mifune) will go after them, with the aid of one of the gang's leaders betrayed by his pals...
Red Sun
In 1870, a gang robs a train and steals a ceremonial Japanese sword meant as a gift for the U.S. President, prompting a manhunt to retrieve it.
