A film dramatisation of C.S. Forester's classic maritime adventurer.

Samana Bay is an island ruled by Spanish privateers. The 'Renown' is sent to route the Spanish and regain control of the island. After an unsuccessful attempt at a front assault. Hornblower hatches a plan to attack from the rear.

Acting Captain Buckland after much deliberation, agrees to attack, which is carried out successfully. Upon return to England, Buckland claims all credit for the operation. Will Hornblower ever be recognised for his efforts...?