In this sequel to the first-season Man From U.N.C.L.E. episode "The Quadripartite Affair," Solo and Illya hope to flush out power-mad criminal Gervaise Ravel (Anne Francis). To do this, they persuade feisty Marion Raven (Jill Ireland, then the wife of series regular David McCallum), to act as bait. While the agents pursue Gervaise through the Andes, their mission is jeopardized by corrupt police lieutenant Manuera (James Frawley). John Van Dreelen rounds out the guest cast as Gervaise's confederate Harold Bufferton. Written by Alan Caillou, "The Giuoco Piano Affair" originally aired on November 10, 1964. ~ Hal Erickson, All Movie Guide