It's pretty much what it says on the tin. Lt Col Hambleton goes down behind enemy lines in the midst of the 1972 Easter Offensive, and after 12 days manages to make his way to safety. This book is readable enough, but some of the dialog is, well, maybe fighter pilots did talk like that, I don't know, it's hard to believe. Lots of square-jawed USAF heroics, a few swipes at politicians and hippies, but all in all a decent enough account of a tense operation. Unfortunately, one of the major characters turns out to be a composite, and while I understand the literary reasons for doing that, it really weakens the emotional resonance of the book.