394.747 Views
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.
First Air Date : Sep 15, 1965
Last Air date : Mar 06, 1968
Episode : 83 Episode
Season : 3 Season
Runtime: 60:14 minutes
Studio: CBS
Country: United States of America