Star Blazers 2199

Out of the Forest of Memory (1x17)

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With the aid of an alien device, Kodai, Yuki, and Sanada explore the control center of an abandoned warp gateway created by an ancient civilization and controlled by the Gamilas. In the midst of a deadly undertaking, Sanada unveils a surprise about the Yamato's navigational functions and his close friendship with Kodai's late brother, Mamoru.