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Season 1, Episode 4: Tunnel of Fear
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Bill and Jeff move the humans from the warpath of General Urko and his army.
All Episodes - Season 1
Episode 1
Flames of Doom
Episode 2
Escape from Ape City
Episode 3
The Unearthly Prophecy
Episode 4
Tunnel of Fear
Episode 5
Lagoon of Peril
Episode 6
Terror on Ice Mountain
Episode 7
River of Flames
Episode 8
Screaming Wings
Episode 9
Trail to the Unknown
Episode 10
Attack from the Clouds
Episode 11
Mission of Mercy
Episode 12
Invasion of the Underdwellers
Episode 13
Battle of the Titans