In 1690, years have passed since Captain Blood was pardoned by the Crown for his daring deeds against the Spanish on the Spanish Main, and he is living quietly on his plantation in the West Indies, practicing medicine and planning his marriage to Isabella. But his peaceful existence is shattered when Hilary Evans arrives and arrests him on a piracy charge. Somebody has been raiding the islands, and making it appear it was Captain Blood. In order to prove his innocence, Captain Blood has to sail again under the "Jolly Roger."

The fate of three men who have lived as brothers since childhood

Cutthroat pirate William Kidd captures Admiral Blayne's treasure ship and hides the bounty in a cave. Three years later, Kidd, posing as a respectable merchant captain, offers his services to the King of England. Seeking a social position, Kidd also negotiates for Blayne's title and lands, provided he can prove Blayne was associated with piracy. Launched upon his royal mission, Kidd is unaware that Blayne's son Adam is among the crew, determined to clear his father's name.

Captain Gallant of the Foreign Legion was a half-hour black-and-white television series about the French Foreign Legion starring Buster Crabbe in the title role. Crabbe's real-life son Cullen Crabbe played the Legion mascot, with cowboy sidekick Fuzzy Knight playing himself as Legion comedy relief. The series premiered on NBC on 13 February 1955 and ended its first run with the 65th episode shown on 7 December 1957. It was shown for many years in syndication on American television under the title Foreign Legionnaire.