U.N.C.L.E. suspects that the U.S. industrialist and tycoon Andrew Vulcan, an officer of WASP (an international criminal organization), plans to kill Prime Minister Ashumen of the newly independent African nation of Western Natumba. Solo is assigned by Mr. Allison, the head of U.N.C.L.E. to thwart the assassination and find out why it was planned. Solo thereafter recruits Elaine May Donaldson, a college girlfriend of Vulcan's and who is now a suburban housewife, to help get information from Vulcan on his plans. Solo's thought is that only a personal connection can obtain the information, and Vulcan has neither wife nor close friends. Elaine is given the cover story of being a wealthy widow and is able to not only get Solo the details of the assassination plot, but drugs Ashumen so he is unable to take the tour of Vulcan’s factory which Solo believes will result in Ashumen’s death. Vulcan’s target, though, turns out to be two of Ashumen’s ministers who do not agree with his plans for having Vulcan set up factories in his country. With Ashumen as Premier and Vulcan running the primary industry there, Western Natumba would become a puppet nation of WASP. After a run-in (and brief romantic tryst) with WASP agent Angela, Solo finds out the truth, is captured along with Elaine, and left to die in what is supposed to look like an industrial accident. Solo and Elaine escape, rescue the ministers, and Ashumen and Vulcan die instead in the “accident” they themselves set up. Elaine is returned to her normal life, which she appreciates all the more after the excitement and danger of an U.N.C.L.E. adventure.