While Harald studies at Oxford, King Olav, grieving Crown Princess Märtha, hosts a birthday party filled with princesses. But Harald longs for Sonja and his friends. Tension rises as Sonja, watching her friends start families, urges Harald to seek his father's permission to marry, challenging royal tradition and their secret love.

King Olav seeks counsel from a divided government, as many Norwegians support Harald and Sonja's marriage, but fear it will break the constitution. Harald feels he's defying the law, while Sonja struggles with following her heart amid public unrest. Faced with pressure from all sides, King Olav must make a difficult decision.