Captain Jack Aubrey is ashore on half pay without a command—until Stephen Maturin arrives with secret orders for Aubrey to take a frigate to the Cape of Good Hope under a commodore's pennant, there to mount an expedition against two French-held islands. The difficulties of carrying out his orders are compounded by two of his own captains...

Only 27 years old, Horatio Hornblower has distinguished himself as a capable and intrepid officer in the Royal Navy. On a reconnaissance mission with the Hotspur, a three-masted frigate under his command, Hornblower and his crew narrowly avoid capture by their French adversaries, but the danger is not over. In the meantime, misgivings about his recent marriage also weigh heavily on the young officer's mind.

Her Majesty's ship Sutherland is a humdrum ship of the line. But in command is none other than the heroic Captain Hornblower and, with his crew from the Lydia, he looks set to take on commando raids, hurricanes at sea, and Napoleons's gun batteries.

In this, the final Horatio Hornblower adventure, C.S. Forester throws his hero into one of the most challenging missions yet. Upon discovering highly confidential papers dispatched by Bonaparte, Hornblower sets off to enlighten the Admiralty about his game-changing, new findings. Troubled after having been informed of Pierre-Charles Villeneuve's escape into Spain, they welcome Horatio's news and send him off on a high-priority assignment that they believe will lead to England's victory over Napoleon.

Hornblower becomes a national hero when he escapes a French firing squad. But the 'Terror of the Mediterranean' becomes Europe's most wanted man, forced to fight alone for England - and liberty.