第 1 集: 失憶的大助在沙漠中遇見兜甲兒，同時格倫戴薩現身

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A man who fell into the desert has no memory. He is named Daisuke and hits it off with Koji Kabuto, who picked him up. As unidentified forces attack the Earth, a giant robot called Grendizer appears. (Source: IMDB)