The game follows FBI Special Agents Fox Mulder (voiced by David Duchovny) and Dana Scully (voiced by Gillian Anderson) as they travel to a small town in the Rocky Mountains to dig into the source of some strange and unexplained murders. Sightings of ghostly apparitions, zombies and hints of alien presence lead them on a chase for an "inhuman" killer. During the course of the story, Mulder and Scully follow leads to a remote location in Russia and then discover, and search, a mysterious half-buried alien space ship. Players can play as Mulder or Scully as they attempt to prevent alien colonization of Earth.

The game follows FBI Special Agents Fox Mulder (voiced by David Duchovny) and Dana Scully (voiced by Gillian Anderson) as they travel to a small town in the Rocky Mountains to dig into the source of some strange and unexplained murders. Sightings of ghostly apparitions, zombies and hints of alien presence lead them on a chase for an "inhuman" killer. During the course of the story, Mulder and Scully follow leads to a remote location in Russia and then discover, and search, a mysterious half-buried alien space ship. Players can play as Mulder or Scully as they attempt to prevent alien colonization of Earth.