Thrush sends assassins after Waverly when he learns of an attempt on the life of a African dignitary. Napoleon thwarts the killers and heads out into the field with the ex-girlfriend of the industrialist, Andrew Vulcan, who is behind the attempt.

In Yugoslavia, Solo and Illya are aided by Marion Raven (Jill Ireland) in stopping Gervaise Ravel (Anne Francis) and her partners from using a fear gas to overthrow various governments. While two of them are captured, two of them escape, and the story continues in "The Giuoco Piano Affair"