Returning from a reconnaissance mission, Susumu and Yuki find a drifting Yamato with the rest of the crew missing. As the two look for clues about what happened, they must face an enemy that can use their own memories against them, assisted by an unexpected ally. The enemy, actually two telepaths from the planet Jirel, worked on this mission, and ends up with one of them, Mirenel Linke, dying after her Ghost Link was vaporized inside the Wave Motion Core chamber. As Cerestella, now the last of the Jirels, weeps, the crew of the Yamato reel from the strange encounter as they carry on their way.