Justice League
S03E01 Monster from the Inferno
Title: Beast from the Depths Plot: The Seaview crew is tasked with uncovering the cause behind a massive communication disruption spanning a thousand miles. Their investigation leads them to a colossal extraterrestrial brain hidden beneath the ocean's surface. Once it is brought onboard, the brain seizes control of Dr. Lindsay, a visiting scientist. With his assistance, and after also taking control of Captain Crane, the alien entity threatens to commandeer the Seaview and subsequently, conquer the Earth.
Season 3 Episodes
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Monster from the Inferno
Werewolf
The Day the World Ended
Night of Terror
The Terrible Toys
Day of Evil
Deadly Waters
Thing From Inner Space
The Death Watch
Deadly Invasion
The Haunted Submarine
The Plant Man
The Lost Bomb
The Brand Of The Beast
The Creature
Death from the Past
The Heat Monster
The Fossil Men
The Mermaid
The Mummy
Shadowman
No Escape from Death
Doomsday Island
The Wax Men
Deadly Cloud
Destroy Seaview!