The Onedin Line (TV Series 1971) | A Very Important Passenger (S01-E10)

Episode 10: Callon proposes Robert buy another shop from him but Albert points out this would put Robert in Callon's behest and finances another premises. James is charged to take a mysterious passenger to Italy, who turns out to be the revolutionary Garibaldi. Attempts are made by enemies posing as crew members to kill Garibaldi but he shoots them, using his new, six-shooter revolver and is safely delivered.

E11: https://rumble.com/v54a4oe-the-onedin-line-tv-series-1971-mutiny-s01-e11.html