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.

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