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In the conclusion of a two-part story, Roger (Bill Daily) has tipped Jeannie (Barbara Eden) to the fact that man whom she thinks is Tony (Larry Hagman)--and who has proposed marriage to her--is actually a lookalike of the real Tony, who has been sequestered in a secret place by Dr. Bellows (Hayden Rorke). Thus it is that when the authentic Tony shows up, Jeannie refuses to believe his protestations of authenticity and subjects him to all manner of torture. The plot thickens when the Phony Tony turns out to be an enemy spy, much to Dr. Bellows' embarrassment!