David Labiosa

Jack confronts President Palmer about the need to negotiate with the terrorists but Palmer refuses since doing so would be tantamount to declaring open season on the American people. Meanwhile, Michelle learns of a life-threatening situation for Tony.

In order to stop the release of the deadly virus, Jack starts a riot to break Ramon Salazar out of prison. Meanwhile, CTU is closer to finding Kyle Singer; and President Palmer and Senator Keeler begin their debate.

Jack finds Kyle Singer's residence, but Kyle, unknowingly in possession of the deadly virus, is gone. Meanwhile, as President Palmer prepares himself for the upcoming televised debate, Wayne forces him to consider some serious allegations against Anne which have surfaced; and a technical specialist (guest star Andrea Thompson) is brought in by CTU to play a critical role in dealing with the viral threat.

Sipowicz and Simone help a stumped colleague with a case; Simone's inheritance complicates his life; Martinez runs for squad delegate.

The detectives don't believe that the shooting of a cop with an active night life is as random as he claims; Rodriguez uses old connections to get a confession from a suspect.

Jessica works hard to get her friend's (Tony Plana) Latino band a recording contract, until a murder rocks her plans.