There are moments in the Second World War that feel almost too strange to be true. Operation Frankton is one of them. It began with a handful of Royal Marines climbing out of a submarine with collapsible canoes and a plan that sounded like something dreamed up by a tired novelist who had run out of sensible ideas. Their mission was to paddle more than seventy miles through German controlled waters, slip into Bordeaux, and cripple the ships feeding the Nazi war machine. It was bold, quiet, and carried out by men who understood that courage is usually a private thing rather than a shouted slogan.

This episode walks through that story, not as legend, but as the hard work of real people who faced cold water, brutal tides, and an enemy that offered no mercy. It is a reminder that history is often moved forward by small groups who refuse to back down.