1793 and Europe is ablaze with war. Thomas Paine Kydd, a young wig-maker from Guildford, is seized by the press gang to be a part of the crew of the 98-gun line-of-battle ship Duke William. The ship sails immediately and Kydd has to learn the harsh realities of shipboard life fast. Despite all that he goes through in danger of tempest and battle he comes to admire the skills and courage of the seamen - taking up the challenge himself to become a true sailor.

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.

Horatio Hornblower sails South American waters and comes face to face with a mad revolutionary in a novel that ripples with risk and gripping adventure. Throughout his escapades, Forester's hero remains resourceful and courageous.

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.

Napoleon is about to invade England, and it falls to young Horatio Hornblower to stop him.