With fuel dwindling to nothing, the U.S.S. Voyager lands on a "demon" planet - so-called because its environment is toxic to human life - to collect from its vast deuterium lode. Both Tom Paris and Harry Kim are suited up in protective gear and sent out to collect the precious deuterium, but return without their protective suits. Instead, it is now the U.S.S. Voyager's environment that is poisonous to them. 

Cast:

Kate Mulgrew as Captain Kathryn Janeway
Robert Beltran as Chakotay
Roxann Dawson as B'Elanna Torres
Robert Duncan McNeill as Tom Paris
Ethan Phillips as Neelix
Robert Picardo as The Doctor
Tim Russ as Tuvok
Jeri Ryan as Seven Of Nine
Garrett Wang as Harry Kim

Guest Cast:

Alexander Enberg as Vorik

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