Captain Alexander Clay and the crew of the Griffin return from India after almost two years away, impatient to see loved ones at home, but fate has other ideas. In the middle of the Atlantic they cross paths with a huge Franco-Spanish fleet on its way to the Caribbean, and find themselves drawn into one of the greatest naval campaigns in history. With the very survival of Britain at stake, Clay will need all his ability to help the Royal Navy win through. Triumph and tragedy await in equal measure as the fleets move towards a titanic clash fought off a rocky cape in southern Spain.