Crown Princess Martha and Crown Prince Olav fear a German invasion of Norway, but the Cabinet doesn’t believe how real the danger is before it’s too late. The Royal Family and Cabinet are forced to flee as the Nazis close in on them. Martha and Olav must make a heartbreaking decision to save their family.

Martha is placed under enormous pressure from her Nazi-sympathizing uncle, King Gustav. He appeals to Hitler in an attempt to save the Norwegian dynasty by declaring little Harald king. When Olav flees to London, she must decide how to bring her children to safety, even though it means they may never be reunited with Olav again.

The perilous journey across the Atlantic is dramatic. When she arrives to the USA, President Roosevelt invites Martha to stay at The White House as his guest and showers her and her children with attention. The mood changes when German bombs begin to fall over London. Martha fears for Olav’s life and gets bad news.

Olav asks Martha to influence President Roosevelt to support the allies against the Nazis. But the President has promised his people to keep the country out of the war. When Martha criticizes him, it takes a toll on their friendship. But then she finds a way for him to keep his election promises, while also helping Norway and the allies.

When the military aid the USA had promised Norway hasn’t materialized, Martha steps out into the public limelight to appeal to the American people for help. Just as she starts to see results, an unexpected source interferes. It is obvious that the President’s feelings for her are deeper than friendship.

The Japanese bomb Pearl Harbor, and the downcast President turns to Martha for comfort. Olav confronts Martha about the rumors of an affair between her and the President, but when an unexpected threat arises, she and the children need the President’s protection.