In 2377, this captured Borg vessel assisted the starship USS Voyager against the Tactical Cube 138 in an attempt to rescue the Voyager's away team consisting of Tuvok, Torres, and Captain Janeway. Together, Korok's Sphere and Voyager mounted an assault on Borg Tactical Cube 138 that was holding Tuvok, Torres, and Janeway. Unable to penetrate the shields, they were not successful at beaming Janeway, Torres, or Tuvok out, but continued their assault.