A strange space cloud appears in the vicinty of Alpha around the same time as a technician dies under mysterious circumstances. Before long, Koenig is locked in a battle of wills with a woman whose latent mental abilities have surfaced presumably due to the cloud's proximity.
Elenco: Martin Landau , Barbara Bain , Catherine Schell , Barry Morse , Tony Anholt , Nick Tate , Prentis Hancock , Zienia Merton , Clifton Jones , Anton Phillips .