Sutherland's last mission saw him and his crew take part on a raid on the Dortmund Ems canal in Germany in September 1943.
But his aircraft was hit over Holland and he was forced to bale out. All the seven men in his crew escaped and survived. Unfortunately the pilot Les Knight was killed while trying to crash land in a field outside the village of Den Ham.
Sutherland was smuggled back to Britain, but any airman who evaded capture was not allowed to fly over occupied Europe again in case they were captured and gave up the secrets of the underground resistance. So Sutherland was sent on training duties and then later in that year he was sent home to Canada.