10 MORE Star Trek Moments That Broke Our Hearts

9. You Are Hurting Me - Drone

Star Trek: Voyager's fifth season opened with Night, a tale about the downtime that the ship rarely enjoyed. That came with its darkness, and nihilism, while Captain Janeway wracked herself with the guilt of their situation. 

After that sunny entry to Voyager's new season, the writers decided to really break the audience. Opening Drone with a smiling Seven, a sight many had given up hope of ever seeing, the former Borg's day went from up to down faster than a cascading turbolift.

She was first a mentor, then a mother, to One - the 29th Century Borg Drone, formed of Seven's nanoprobes, Ensign Mulcahy's DNA, and the Doctor's Mobile Emitter. Theirs was a short family life as One suffered catastrophic injuries while saving the ship from a Borg Sphere. 

Knowing his presence would only encourage the Collective to return, One sacrificed himself to protect the crew. As Seven's pain was on full show, One rather softly assured her, before meeting his maker:

You will adapt.