Star Trek: Voyager: Season 5, Episode 2

5 - 2: Drone

A transporter accident merges some of Seven Of Nine's Borg nanoprobes with the Doctor's 29th Century moble holo-emitter during an away mission, creating a 29th Century super-Borg drone hybrid. Seven discovers her maternal nature as she raises and educates the young drone. Captain Janeway must decide how to deal with the potential danger to all non-borg life.