第4話: グンダールがグレンダイザーを探して攻撃し、コウジが島に不時着する

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Gandal wants to discover the hiding place of Grendizer. So he launches a massive attack. Kouji tries to confront the enemies alone, but he only succeeds to crush himself on a deserted island. Finally, Duke Fleed makes it there and saves the day. (Source: AniDB)