In the Star Trek: Voyager episode "" (Season 3, Episode 24), the crew faces a unique tactical threat when they are systematically replaced by members of an alien race called the Nyrians . Mission Summary
: The Nyrians use displacement technology to seize ships without traditional combat, moving original crews into "habitats" tailored to their physiology to keep them docile and comfortable. [S3E24] Displaced
: Voyager was successfully recovered. The Nyrians were allowed to leave, though some viewers and reviewers have debated Janeway’s decision to let them go rather than turning them over to the other species they had victimized. (S3 E24) ReBinge Star Trek Voyager : Displaced In the Star Trek: Voyager episode "" (Season