 Baron Von Trapp, a widower, runs his home near Salzburg like the ship he once commanded. That changes when Maria arrives from the convent to be the new governess of his seven children. Their romps through the hills inspire all to sing and to find joy in the smallest things -- like raindrops on window panes. With a renewed zest for life, the baron hosts a party to introduce his new fiance. Maria knows then she does not want to be a nun. She marries the baron. The happy ever after part is threatened when Austria s new German rulers want the baron back in military service.