In 1782, Emma Hart, the beautiful daughter of a cook
hired by artist George Romney, is courted by his friend, Charles
Greville, but later marries Greville's uncle William, Lord Hamilton,
the British ambassador to the Court of Naples. Despite the
differences in their ages and social positions, Emma and Lord
Hamilton are happy, and Emma becomes a confidante of the Queen of
Naples.
Years later, Emma meets English Captain Horatio
Nelson and, during the Napoleonic wars, is instrumental in gaining
royal permission for him to take on badly needed water and
provisions at Naples. Although initially denying their
feelings, Nelson and Emma soon become lovers and live openly
together.
Nelson's naval victories against the French, and
Emma's help to the British government during the war, lead to their
return to London where they are cheered by crowds. However,
because of their adulterous relationship, Emma is snubbed by English
society and shunned by her husband. After Emma is denied an
invitation to a royal ball in Nelson's honor, Nelson leaves his wife
Fanny and retires to his country estate with Emma. They are
happy for a while, but duty later calls Nelson away to head the
British fleet. Although he again defeats the French, Nelson is
badly wounded and dies at the Battle of Trafalgar, surrounded by his
loyal men and thinking of Emma.