Katherine of Aragon is betrothed at the age of three to prince Arthur, son and heir of Henry VII of England. She is raised to be Princess of Wales, and knows it is her destiny to rule that far-off, wet, cold land.
Her faith is tested when he prospective father-in-law greets her arrival with a great insult; Arthur seems little better than a boy; the food is strange and the customs coarse. Slowly she adapts to the first Tudor court, and life as Arthur's wife grows ever more bearable. Unexpectedly in this arranged marriage, a tender and passionate love develops.
But when the studious young man dies, she is left to make her own future: how can she now be queen, and found a dynasty? Only by marrying Arthur's young brouther, the sunny but spoilt Henry.