Young Irish physician Peter Blood is exiled as a slave to Barbados, where he and his friend Jeremy are purchased by Colonel Bishop at the behest of his niece Arabella. With other slaves he captures a Spanish galleon and becomes the terror of the Caribbean privateers until offered a commission in the English Navy. He defeats the French at Port Royal, and as a reward he is named governor of Jamaica and marries Arabella.
A train that is carrying the formula for a valuable form of granulated gasoline disappears before it reaches its destination. Railroad investigators and the authorities try to determine where it is and who took it.
Aimee is a young girl betrothed to a rascal, Hamid Bey. An American archeologist, Jack Ryder, arrives to help the girl escape ending up in Bey's harem, but it takes the boy ten episodes to finally succeed.