Star Trek: Voyager: Season 3, Episode 12

3 - 12: Macrocosm

Stardate: 50425.1 Captain Janeway and Neelix return from a difficult first contact and trade mission with the Tak Tak to find Voyager disabled and adrift in space with the crew barely alive. They soon learn that alien macroviral lifeforms overran the ship and grew rapidly in size. After Neelix becomes infected, Captain Janeway and The Doctor must retake the ship.