4-08: Year of Hell, Part I
Voyager is repeatedly attacked by Krenim warships while a scientist alters history by eliminating entire races from existence.
Chakotay becomes involved with a mysterious woman who seeks asylum on-board Voyager.
4-22: Living Witness
In the distant future, The Doctor’s backup program is reactivated, who must now correct Voyager’s negative historical perception.
4-01: Scorpion, Part II
Voyager strikes an uneasy partnership with the Borg to fend of Species 8472's invasion.