John Howard is determined to brighten up his old age by taking a fishing trip to France. However, during his stay the Nazis invade and he is forced to try to escape back to England with the two small children of some friends who must stay behind to help the Allied war effort. As the conflict grows closer, the roads become impassable and Howard also comes across five more children who need his help. He ends up leading this motley group of youngsters through the French countryside, constantly beset by danger yet heroically protecting his charges.