Star Trek: Voyager

Ashes to Ashes (6x18)

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Ensign Lindsay Ballard returns to Voyager after being killed during a previous away mission. An alien race known as the Kobali, whose only method of reproduction is 'resurrection' of the dead through genetic engineering had revived her and taken her as a new member of their race. When the full extent of her new Kobali genes are activated, they reach a point where she must choose between her old home on the ship, or her new home with her adoptive Kobali family.