In the late 1930s, civil war grips Spain. When General Franco and his Fascists succeed in overthrowing the government, hundreds of thousands are forced to flee in a treacherous journey over the mountains to the French border. Among them is Roser, a pregnant young widow, who finds her life intertwined with that of Victor Dalmau, an army doctor and the brother of her deceased love. In order to survive, the two must unite in a marriage neither of them desires. Together with 2,000 other refugees, they embark on the SS Winnipeg, a ship chartered by the poet Pablo Neruda, to Chile. As unlikely partners, they embrace exile as the rest of Europe erupts in world war.