Bill Deakon, CIA dropout, is reinstated by the State Department as a courier to Tunis; before he gets there he's the thirteenth to be hit by the KGB and only later told of the use that's been deliberately made of him. From then on he freelances through the Middle East (Russians; Arabs; Algerians; Al Fatah; Palestinians; Israelis -- it's very hard to keep them apart) in an attempt to find the girl who'd left him with a taste of chloral hydrate and a high priority Russian tank. All of it's as sharp as the report of one of those machine guns he always seems to be over the barrel of.