England, 1940. Barney's home has been destroyed by bombing, and he and his mother are traveling to the countryside when German planes attack. Their train is forced to take shelter in a tunnel, and there, in the darkness, a stranger - a fellow passenger - begins to tell them a story about two young soldiers who came face-to-face in the previous war. One British, one German. Both lived, but the British soldier was haunted by the encounter once he realized who the German was: the young Adolf Hitler.

The British soldier made a moral decision. Was it the right one?