British ex-army officer Robert Dapes arrives in Cuba to advise the Batista government and to train his troops to fight the rebels, who are well organised under Fidel Castro. Dapes realizes, that the situation of the government is very poor, as the troops are weak and the revolutionaries are gaining ground.
One day he meets Alexandra, his former love, who is now marries to a rich, philandering cigar factory owner. They renew their relationship, but the rebels are going to succeed and Dapes leaves the island with the last plane, leaving Alexandra behind, as he could not persuade her to acompany him and come to Europe.