An investigative programme from BBC Plymouth starts this series featuring some of the best documentaries that have been shown by the BBC nations and regions.

In 1941 HMS Gloucester was sent into the Battle of Crete while low on ammunition, only to be sunk by German dive bombers. Out of 800 crew, 84 survived. History books have recorded the sinking as a tragic consequence of war, but letters written at the time describe the decision to send the ship back into battle as a grave error.