As the title reveals, this shows the events surrounding the death of Pope Leo XIII who died 20 July 1903 at the age of 93. Apparently, this is a reconstruction of the news and the cover image of Le Petit Journal from 2. August 1903 was the inspiration to this film.

Translated from the Spanish program: "In this historic animated painting, several Cardinals appear at the bedside of the illustrious patient, among them the most reverend Mr. Rampoya, the renowned Italian doctors Laponni and Mazzoni, who made superhuman efforts to save to the Holy Father of death. It is also observed with all property the Camarlengo Mr. Oreglia di Santo Stéfano, who after having learned from the doctors that his Holiness the Pope ceased to exist, took the small silver hammer to strike on the venerable forehead of the deceased the three blows that the Roman Rite commands, to let the Catholic world know that the head of their Church had just expired. Also featured in this important painting are various Ecclesiastical Dignities, his Holiness honor guard, and other characters. Moments before the expiration of the Holy Father, it will be seen that in those supreme moments he did not forget his flock, sending us from his deathbed his last blessing."