Dunkirk: Mission Impossible Channel 5, 6.30pm

In the documentary's concluding part, J.J. Chalmers focuses on the Allies' final push to keep German forces away from the port, allowing as much time as possible for the fleet of ‘little ships' to carry away troops stranded on the shore. Having been wounded in battle himself, the former soldier offers a unique insight into the experiences of those whose injuries meant they had to be left behind. ★★★★★