A year after visiting US President Franklin Roosevelt, Norwegian Crown Princess Martha and her husband, Prince Olav, flee the Nazi invasion of their country.

Olav and the king plan their escape; Martha and her children take refuge in Sweden, but a Nazi threat still looms.

President Roosevelt extends a special invitation to Martha and her children; bombs fall on Olav and the king in London.

Martha is pressured to exploit her friendship with President Roosevelt; Martha and her children receive a surprise Christmas present.

The government prevents Martha from working for Norway. When the president intervenes, she understands that his feelings are more than friendly.

Martha promises Olav that she won't see the president again, but when an unexpected threat arises, she is dependent on his protection.