It is February 1818 & Adam Bolitho longs for marriage & a safe personal harbour. But with so much of Britain's fleet redundant he knows he is fortunate to be offered H.M.S. Onward a new 38-gun frigate whose first mission is not war but diplomacy as consort to the French frigate Nautilus. Under the burning sun of North Africa Bolitho is keenly aware of the envy & ambition among his officers the troubled restless spirits of his midshipmen & the old enemy's proximity. It is only when Nautilus becomes a sacrificial offering on the altar of empire that every man discovers the brotherhood of the sea is more powerful than the bitter memories of an ocean of blood & decades of war.