stardate 51244.3. The crew is over taken by an invisible alien race, conducting strenuous tests on them like lab rats. These tests have some unsightly results. No one aboard Voyager are able to detect them except one crew member, Seven of Nine.

stardate 51268.4. The Voyager encounters the Krenims, a race that tampers with little care for the consequences of their actions which involve wiping billions of lives, planets, and star systems. Their objective is to restore what they had before. The Voyager gets caught in the middle and is forced to disband as the seniors of the crew are left to defend their ship.