![](https://image.tmdb.org/t/p/w342/dGhtCpYZutuso2P3GKWnQnqwhSi.jpg)
411.382 दृश्य
Dr. Smith holds a seance to contact his Uncle Thaddeus. Instead a spirit creature is contacted and creates havoc for the Robinsons. It is later discovered that the ""spirit creature"" is a physical creature, rendered invisible by the properties of the ""ionized gas"" in the bog from which it came.
पहिलो एयर मिति : Sep 15, 1965
अन्तिम एयर मिति : Mar 06, 1968
एपिसोड : 83 एपिसोड
सीजन : 3 सीजन
रनटाइम: 60 मिनेट
स्टुडियो: CBS