The Voyager encounters a swarm of mysterious life forms that has a strange effect on the ship's key operating system and whose presence accelerates Kes' reproductive cycle.
After a disagreement over Kes, Neelix and Tom Paris are trapped together on an alien planet and must work together so that they and their alien baby ward can survive.
The Caretaker's remains resonate, which might well mean that its mate is nearby. The trail leads to a space colony of Ocampa with psychokinetic powers.
B'Elanna gives aid to a failing automated device found adrift in space. After the repairs, the device recalls what its purpose was - and carries it out.
B'Elanna confronts her Maquis past when Voyager discovers a Cardassian super-weapon in the Delta Quadrant with artificial intelligence that B'Elanna once modified.
A schism duplicates everything in Voyager; except the antimatter, which both ships share. As one ship rips apart, the other comes under attack from organ-harvesting Vidiians.
Captain Janeway and Chakotay contract an incurable virus and they can only survive if they stay behind together on a planet which negates the effects of the disease.
Seska knows Voyager, and her Kazon cohorts want it, so the Voyager crew wonders what to make of her distress call announcing the birth of Chakotay's son.