The action takes place in the 17th century. Doctor Peter Blood gives medical aid to a wounded man who turns out to be a wanted rebel against the English king. For this act, the doctor is sentenced to death. Instead, however, he is exposed to the slave market. It is purchased by the beautiful Arabela Bishop. Thanks to her help, Piotr escapes from captivity. He captures a Spanish galleon and becomes a famous pirate. One day, he learns that Arabela has been kidnapped by another pirate gang. He decides to save her.