While the Dunkirk evacuation is rightly remembered in British history, there are some things forgotten about it. One of these things is that not everyone was evacuated.
This programme looks at the 51st Highland Division, who were ordered to stay behind in France and fight the invading Germans. As well as their continuing fight, there is also the story of how they attempted to return back to England.
Dunkirk: the Forgotten Heroes is on Channel 4 at 20.00.