London, 1988.
In a BBC television studio, a retired stockbroker in his late seventies sits in the audience of a popular show called That's Life. His name is Nicholas Winton. He does not know what the show has planned for him tonight.
On the set, the host, Esther Rantzen, opens an old scrapbook. It had sat in his attic for nearly 50 years. Inside are black-and-white photographs of children and a list of their names.
There are 669 of them. Most were Jewish.
In 1939, Nicholas Winton got every one of those children out of Nazi-occupied Czechoslovakia and into Britain. He was not a diplomat or a soldier. He was a stockbroker.
Then, for almost half a century, he barely spoke of it in public.
Now he is sitting quietly in the audience, and the woman in the seat right next to him is a stranger to him.
Or so he thinks.