Star Trek: Voyager - Season 7 Episode 9
Flesh and Blood (1)

Stardate: 54337.5 - The crew of Voyager find a Hirogen training facility, and discover that the hologram technology they gave the Hirogen several months ago was modified to the point where the Holograms are smarter and more cunning than their hunters. The Doctor is abducted by a band of holograms that escaped from the Hirogen facility and is asked to join them in forging a new life as independent photonic beings. The crew of Voyager must ally themselves with the Hirogen to find the Doctor and re-capture the renegade Holograms. After a confrontation with the holograms ship, Voyager is disabled and BElanna is abducted, with the Doctors help, to aid the Holograms in their plight.