Based on a true story, The Great Escape tells of an attempt by Allied prisoners of war to break out of a supposedly 'escape proof' camp in Germany during World War II. A plan is developed that sees several hundred prisoners escape all at once. The first half of the film is played for comedy as the prisoners mostly outwit their jailers to dig the escape tunnel. The second half is tense adventure as the escapees use whatever means they can to get out of occupied Europe.