The Invaders - The Pit

Seizoen: 2 - Aflevering: 19 / 36 - Eerst uitgezonden: 16 januari 1968 - Episode ID: 304384

Julian Reed calls upon David Vincent to help him expose aliens who have infiltrated The Slaten Research Center. By the time David arrives at the scene, Julian's having hallucinations. Is Julian truly a lunatic, or are the aliens behind his mental lapse?