The Troubled Spirit

S1, E22: A ghost stalks the moon - the ghost of a living man - bringing horror and death in its wake. An eerie wind, increasing in intensity, sweeps through Moonbase Alpha, when Dan Mateo is conducting experiments in the Hydroponic Unit in which he works as a botanist. With him at the time is his assistant Laura Adams. Lights dim. A sudden drop in temperature is recorded. Plants, grown in the unit for the studies carried out there, droop and die. And Mateo collapses.