"Genie, Genie, Who's Got the Genie?" was not only the third chapter in a four part storyline, it also marked the third appearance of Jeannie's brunette sister, forever coveting Tony as her own master. Surely it would be child's play for her to steal Tony with her blonde sister trapped in the NASA moon safe. Arranging for a swap with another astronaut (Mike Farrell), Jeannie's sister gets Tony assigned to Baghdad, where he hopes to find Haji, king of the genies, who can set his Jeannie free. Unfortunately, he winds up caged in the harem of her master Habib (Ted Cassidy), the suspicious type with a genie like her. Roger manages to find the right palace, but only Habib is able to right the wrong. The next appearance of Jeannie's sister comes in "Have You Ever Had a Genie Hate You?"