THRUSH agent Elom tries to kidnap a geologist who has developed an earthquake activating machine, but mistakes debt-ridden salesman Buzz Conway for the scientist. Solo and Illya let THRUSH go on thinking Conway is the scientist, while Elom lets his attraction for THRUSH agent Narcissus Darling interfere with his judgment. Conway is captured, and Solo and Illya must rescue him and find the machine.

THRUSH agent Abbot Simon takes over the monastery at St. Thomas to use the mountain location to aim a new laser gun at a long distance target the Louvre in Paris. Solo visits the area and meets Andrea Fouchet, and together they try to stop Simon before he destroys the world's greatest art treasures.