Voyager, in desperate need of Tellerium, which will provide a stabilizer for their warp core, causes Janeway and an away team to beam down to a planet that has a supply of this substance. However, the city they beam to has an occupying force known as the Mokra. Tuvok and Torres are then captured by the Mokra, Neelix escapes back to Voyager with the needed Tellerium, and Janeway escapes only to find a mentally unstable ally, who believes Janeway is his missing daughter.

Now Voyager, with Janeway on the planet with a mentally unstable suspect, must find a way to rescue their fellow crewmen from thier secure prison facility.