The Calypso and her captain, Lord Nicholas Ramage, venture further into the French-dominated waters of the Mediterranean on an Admiralty mission to sink, burn, and destroy. Aiming to confuse and distract the enemy, Ramage and his men find themselves isolated and outnumbered as they take on the might of Napoleon's fleet.

The youngest captain in His Majesty's Navy, with a reputation for landing impossible assignments, Lord Ramage is dispatched to the Caribbean islands of Martinique and Diamond Rock. The mission seems humdrum: barricade the French within Fort Royal. But sent to sea in the Juno with a crew grown restless and undisciplined under the prior command of a drunk, Ramage realizes his vessel may not be up to battle with the French.

Across the English Channel, Napoleon has massed a great invasion flotilla. English forces, under Lord Nelson, are all but paralyzed-not knowing the size, strength, or time of the foreign onslaught. In a daring spy scheme to protect British shores, Ramage is chosen to plumb the secrets of the French, and the penalty for failure is the guillotine.

Barbary Coast pirates-the Saraceni-are capturing slaves and terrorizing fishing villages along the coast of Sicily. Ramage and his crew are sent to track them down before they can devastate another town.

Admiralty spies are hunting for British officers and allies trapped on the mainland, among them Ramage's first love, Gianna, the Marchesa di Volterra. Ramage returns to the Tuscan coast, where Bonaparte holds a group of hostages for an unknown fate.

Captain Lord Ramage's honeymoon in France is interrupted by a sudden end to the Peace of Amiens. Finding themselves on unfriendly soil just hours before hostilities commence, Ramage and his bride elude the grasp of Napoleon's secret police.

Captain Lord Ramage and the Calypso return from Devil's Island, but Ramage's new wife Sarah is missing. The captain would like nothing better than to sail home immediately, but instead he is ordered to shepherd a lumbering convoy of merchant ships back to England. On the way, bizarre events lead him to a full court martial in Plymouth, presided over by his old nemesis, Rear-Admiral Goddard. Ramage must clear his name-or face a sentence of death!