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.
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.
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.