The film takes place at the end of the 19th century. The Cardinal Guglielmo Massaia has spent 20 years in Ethiopia to convert people to the Catholic Church. He comes back to Italy and he tries to get the help of the government of Piedmont. The Count Cavour, although he appreciates the Cardinal's deeds in Africa, cannot grant his Cabinet's support to the Cardinal's plans. The missionary man, trusting the Divine Providence, goes back to Africa by himself. The Cardinal, who is known among the peopl...