Katherine of Aragon is betrothed to Arthur, son of Henry VII of England. Her faith is tested when her 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 brother, the sunny but spoilt Henry.