August 6, 1943: In his brief career in the Office of Strategic Services, twenty-four-year-old Cletus Frade has already been involved in a lot of unusual situations, but nothing like the one he's in now, standing with a German lieutenant colonel named Wilhelm Frogger in a Mississippi prisoner-of-war detention facility. Frade's job? To help Frogger escape so the OSS can use Frogger's knowledge and connections to kill Adolf Hitler.

"In this gripping narrative, Ben Macintyre tackles one of the most famous prison stories in history and makes it utterly his own. During World War II, the German army used the towering Colditz Castle to hold the most defiant Allied prisoners. For four years, these prisoners of the castle tested its walls and its guards with ingenious escape attempts that would become legend. But as Macintyre shows, the story of Colditz was about much more than escape....