5-18: Course Oblivion
When the crew becomes infected with a deadly illness, they discover that they may be duplicates.
5-26: Equinox, Part I
Voyager encounters another Starfleet ship, whose battered crew has a sinister secret.
5-11: Latent Image
The Doctor notices that a large portion of his memories have been deleted, after experiencing emotional instability from a decision that lead to a crew member’s death.