Even though Tony (Larry Hagman) and Jeannie (Barbara Eden) are now husband and wife, Jeannie's wicked lookalike sister (also played by Barbara Eden) hasn't abandoned her efforts to break up the couple. Jeannie II's latest scheme is to pose as the "real" Jeannie while conducting a very public romance with handsome astronaut Biff Jellico (played by Barbara Eden's then husband Michael Ansara), thus disgracing her sister. Meanwhile, Jeannie remains blissfully ignorant of what her sibling is up to--until it's almost too late. ~ Hal Erickson, Rovi