"Unimatrix Zero" is a two-part episode of Star Trek: Voyager, the cliffhanger between 26th episode of the sixth season and the first episode of the seventh season. Starfleet's USS Voyager stranded on the other side of the Galaxy, once again encounters a race of cybernetic organisms called the Borg as the ship journeys back to Earth. This was a two-part episode, aired separately; it features the Borg Queen played by actress Susanna Thompson.