Voyager is confronted by the Hirogen after usings their ancient network of relay stations to retrieve letters from home.
4-18: The Killing Game, Part I
Their memories erased, Voyager’s crew are placed into a World War II holoprogram to be studied and hunted by the Hirogen.
4-22: Living Witness
In the distant future, The Doctor’s backup program is reactivated, who must now correct Voyager’s negative historical perception.