Border Security: Canada's Front Line is a Canadian television program produced by Force Four Entertainment that airs on the National Geographic Channel. The show follows the work of officers of the Canada Border Services Agency (Agence des services frontaliers du Canada) as they enforce Canadian customs, quarantine, immigration and finance laws.
In May 1940, while covering the retreat from Dunkirk, a Mark 1 Spitfire flown by RAF ace Squadron Leader Geoffrey Stephenson was shot down and crash-landed on a beach in northern France, where it slowly sank into the sand.
