Zorro - Season 1 - Eps 20: Agent of the Eagle
Don Alejandro tells Diego he's received a letter from a friend in the capital telling him that the new commandante, Capitan Juan Ortega, has the reputation of being an honest and fair man. When Ortega arrives, he doesn't act that way. He treats Sergeant Garcia with contempt and is openly arrogant toward the civilians. The reason for this is revealed when Ortega meets the magistrado and informs him that the real commandante has been ambushed and murdered, on orders of the Eagle.
About Zorro

Title: Zorro
First Air Date: 1957-10-10
Last Air Date: 1959-07-02
Status: Ended
Rating: 7.5/10 (from 169 votes)
Language: EN
Seasons: 3
Total Episodes: 78
Network: ABC
Genres: Western, Action & Adventure, Drama, Comedy, Family
Production Companies: Walt Disney Productions
Synopsis
Diego de la Vega, the son of a wealthy landowner, returns from his studies in Spain and discovers that Los Angeles is under the command of Capitan Monastario, a cruel man who relishes in the misuse of his power for personal gain. Knowing that he cannot hope to single-handedly defeat Monastario and his troops, Diego resorts to subterfuge. He adopts the secret identity of Zorro, a sinister figure dressed in black, and rides to fight Monastario's injustice.
Cast

Guy Williams
Don Diego de la Vega / Zorro

Gene Sheldon
Bernardo

Henry Calvin
Demetrio López García