The town of Martinique is attacked, sacked, and Governor Gonzales and his soldiers are captured by the nefarious Blackbeard and his pirate band. The Governor, his wife and her friends are all taken to the pirate ship. The Governor is made to walk the plank before his horrified wife, but his rescue comes unexpectedly at the hands of Conchita, his wife's maid, who grasps a knife from a pirate, dives overboard, cuts the Governor's bonds, and both swim away. They succeed in reaching land, where some kind fishermen recognize the Governor and take him and his companion to their cottage. But on board the ship the prisoners are hustled into the boat, tied to the rings, and Blackbeard prepares to suffocate them with sulfur. The fishermen have sighted an English man-o'-war, and they hasten to the Governor who boards the vessel, and after explaining his predicament, the commander of the vessel orders the deck cleared for battle. But the pirate vessel has likewise sighted the British man-o'-war, and prepares for action. Blackbeard orders the sulfur to be lighted, and then leaves to superintend preparations on deck. A shot pierces the side of the vessel, allowing the welcome air in to somewhat revive the prisoners. Right is might, and the pirate is boarded by the English sailors and the pirates put to rout. Blackbeard and his ringleaders are hung at the yardarms of his own vessel.