At the beginning of 1920, the world is full of optimism after the end of the First World War. The young crown prince also enjoys life and not least the work in the navy. But a crown prince's most important task is to marry and produce an heir to the throne. It turns out to be more difficult than expected and the years pass. When he finally meets love at the age of 35, the country erupts in excitement and even the old, domineering king falls for his new daughter-in-law. But hard times soon await, as Hitler massively rearms in the 1930s and the world once again stands on the brink of a world war.