One of four miniseries comprising NBC's Best Sellers anthology, The Rhinemann Exchange was adapted from the Robert Ludlum novel of the same name. Stephen Collins stars as American intelligence officer David Spaulding, who under cover of his musician father's concert tours embarks upon a number of fact-finding missions in Europe just before WW2. Once hostilities break out, Spaulding relocates to Aergentina, there to exchange industrial diamonds for a secret gyroscope needed for the American war effort. Naturally, the Nazis are equally interested in those diamonds, putting Spaulding in any number of perilous predicaments. Lauren Hutton costars as Leslie Hawkewood, one of those ravishing "mystery women" so common to espionage fiction. Originally running 5 hours and telecast in three segments on March 10, 17, and 24, 1977, The Rhinemann Exchange was later rebroadcast as a four-hour, two-part "TV movie."