Cisco Ramon: DeVoe must've predicted Harry would build his own thinking cap and power it with the dark matter from this tube.
Barry Allen: Dark matter that he can siphon off S.T.A.R. Labs to use to infect the world. Harry was his guinea pig. He knew if he could reboot Harry's brain, he could reboot everyone's. What about Gideon, could she hack into the satellites?
Cisco Ramon: No, purple haze took her out too. What do we do?
Barry Allen: I don't know.
Iris West-Allen: [walks in the Time Vault with Marlize] It's okay, Barry. I think I do.
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From: The Flash