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- Writers: Robert Cochran, Joel Surnow
- Stars: Kiefer Sutherland, Mary Lynn Rajskub, Carlos Bernard, Dennis Haysbert,
Jack and Doyle discover the true source of CTU's security leak: an autistic savant hacker named Brady, who has been following his brother's orders. Sandra Palmer agrees to bring President Wayne Palmer out of his coma in an effort to stop the nuclear retaliation against Fayed's country. Meanwhile, Jack uses Brady in a sting, hoping to capture Gredenko.