Jonny Quest
Season 1, Episode 20: The Invisible Monster
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Dr. Quest responds to the distress signal from a fellow scientist, who has accidentally unleashed an (invisible) energy monster on a South Pacific island.
All Episodes - Season 1
Episode 1
The Mystery of the Lizard Men
Episode 2
Arctic Splashdown
Episode 3
The Curse of Anubis
Episode 4
Pursuit of the Po-Ho
Episode 5
Riddle of the Gold
Episode 6
Treasure of the Temple
Episode 7
Calcutta Adventure
Episode 8
The Robot Spy
Episode 9
Double Danger
Episode 10
Shadow of the Condor
Episode 11
Skull and Double Crossbones
Episode 12
The Dreadful Doll
Episode 13
A Small Matter of Pygmies
Episode 14
Dragons of Ashida
Episode 15
Turu the Terrible
Episode 16
The Fraudulent Volcano
Episode 17
Werewolf of the Timberland
Episode 18
Pirates from Below
Episode 19
Attack of the Tree People
Episode 20
The Invisible Monster
Episode 21
The Devil's Tower
Episode 22
The Quetong Missile Mystery
Episode 23
The House of Seven Gargoyles
Episode 24
Terror Island
Episode 25
Monster in the Monastery
Episode 26
The Sea Haunt