If you don't want to know what happened in this episode, don't read this photo recap!
In a flashback, the body of Emperor Ishida Tetsuda (Four's father) is discovered. Murder most foul!
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A hooded figure whom we assume to be Four fights off the Emperor's guards, later removing the hood to reveal … Five! Huh?
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Five uses the equipment in the infirmary to put herself into a dream state that allows her to access everybody's memories. It's a somewhat dangerous project.
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Meanwhile, One awkwardly confronts Two about sleeping with Three (this is starting to sound disturbingly like a word problem on the math SAT). Two says it's complicated with One ... and with Three it's not. Bah.
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In Five's dreamstate, Four's stepmother reveals that she murdered his father and plans to frame him for the crime so that her own son will become Emperor. Intrigue!
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The crew can't wake Five from the dream state. Someone needs to go in and bring her back ...
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Five enters her own memories and encounters TJ, the boy whose body she discovered a few episodes ago, in a bunker for homeless teenagers. Sinister forces killed all of their friends because Five stole some sort of valuable key.
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In Five's memory, she ends up being a stowaway aboard the Raza, where Three traps her in the airlock. Jerk.
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Six enters the dream state to rescue Five and explores his own memories. He learns, pre-amnesia, that he was tricked into enacting a terrorist attack that claimed the lives of thousands of innocent people.
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Six finds Five living in what appears to be One's idyllic childhood on a farm. He brings her back from the dream state, solidifying their bond.
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Six learns that "The General" who instigated his terrorist attack is still alive, his whereabouts unknown.