Matt Helm is puzzled. He's been sent to Mexico to investigate the sighting of a flying saucer, but Helm doesn't believe in little green men. Then his Russian opposite number is shot in her hotel, but who did it? And why are the Mexican cops acting so tough? Time to track down the redhead who called in the sighting and get to the bottom of the case.

"That cold-blooded human spider spinning his lousy webs of intrigue..."

Matt Helm is on vacation in Mexico with nothing on his mind except fishing, when some joker tries to shoot him in the back. Naturally it was no accident. When secret agents get shot at, it never is. So Helm has to go back to work. At least there's a bonus in the form of his boss's beautiful daughter, a playmate in peril.