Star Trek: Voyager: Season 4, Episode 23 - ProjectFreeTV

4 - 23: Living Witness

Seven hundred years into the future, a backup version of the Doctor is reactivated and faces trial for war crimes. He must uncover the truth to defend Voyager's crew and set history straight when an alien race claims that the Warship Voyager was responsible for war crimes committed against their race when the ship passed their planet centuries ago.