- Sure enough, they have a ball (literally, a ball), and it looks like quite the rager. By 1930s Austrian standards, at least.
- An unpleasant-looking man attends and gives the stink-eye to the Austrian flag in the hall.
- The kids stand by the dance floor, watching. They start dancing together outside.
- Maria starts to show them an Austrian folk dance, dancing with Kurt. The captain comes and cuts in.
- The baroness finds them out there and watches Maria and the captain dance. She's not happy.
- At the end, there's a moment where they look into each other's eyes and seem kind of shocked.
- Maria blushes, and stammers that she doesn't know any more of the dance. The baroness tells them they make a lovely couple.
- Maria scurries off with the children to prepare a surprise for the guests, which turns out to be a goodnight musical number ("So Long, Farewell").
- After the music's over, Max tries to get Maria to join the party.
- Maria balks, saying that she's not properly dressed. They'll wait for her to change.
- The unpleasant man starts an argument with Captain von Trapp about the tension between Austria and Germany.
- His name is Herr Zeller. His favorite color is black and his favorite dictator is Adolf Hitler.