The king and crown prince retreat to London and arrange for crown princess Martha and the children to take a boat from Finland to the United States.

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

Martha is pressured to exploit her friendship with the president. Roosevelt defies isolationists to push the Lend-Lease act. Martha and the children get a surprise Christmas present.

America enters the war, and Olav arrives from England. Missy grows suspicious of ties between Roosevelt and Martha, as does Olav. Meanwhile, a dastardly Nazi plot unfolds.

A Nazi agent slips through the cracks, putting the children at risk. Martha travels to England and gets a shock. A Norwegian war hero meets a tragic fate.

Roosevelts health declines and Olav tries to stay out of the Soviet sphere of influence.