Kaizoku Sentai Gokaiger

The Strongest Man in the Universe (1x42)

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After a battle, the Gokai Galleon crew discovers a magazine feature that says that Don Dogoier is a famous warrior who once slayed a powerful dragon, but Doc reveals that he actually has no memories from before he joined the Gokaigers. Damaras joins forces with Basco in an attempt to exact his revenge on the pirates.