In April 1941, inmates at the Angler POW Camp near Neys Provincial Park on the north shore of Lake Superior planned the largest escape from a Canadian POW camp during World War II.
A radio was obtained by blackmailing a guard and hidden inside a model of the German battleship Bismarck.
By noon on April 18, 1941, the day of the escape, the tunnel was already filled with 30 cm (12 inches) of water.
The original report stated that they had rushed the two Canadian soldiers who found them, but later research indicated that four had been shot while still lying down, killing two of them, while the fifth had run into a nearby forest, where he was quickly captured.
However, two prisoners, Horst Liebeck and Karl Heinz-Grund, boarded a westbound freight train and made it to Medicine Hat, Alberta before being recaptured and returned to the Angler camp.