Ultraseven Episode 21

ウルトラセブン ‧ Drama ‧ 1967 - 1968

Episode Title: Pursue the Undersea Base

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Season: 1

A series of ship sinking reported along the Japanese coast is discovered to be the result of attacks by a gigantic hybrid of Second World War battleships and submarines. Ultra Garrison's investigations reveal a race of aquatic aliens to be the monster ship's builders, but while they tussle with the invaders, the warship is launching an all-out assault on Japan. (Source: TV Tropes)

Aired: February 25, 1968

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