The von Trapp family are struggling to survive in America, where their performances of European church music are not popular with the audiences. Only when they start performing more upbeat Austrian folk songs and even some American numbers do they become a success and finally find security and a new home.

In early 20th Century Europe, a dancer becomes the romantic bone of contention between two men, a humble shepherd and an imperious marquis.

A Prussian commander disobeys orders and goes to find a British envoy who can negotiate a pact with Austria to help fight off Napoleon in 1806.