Steve Heinze

When the CTU loses track of Kyle, and Palmer fears he'll have to either give into the terrorists' demands or face a catastrophic virus outbreak, Jack proposes a risky third alternative.

Sydney, Vaughn and Jack must determine whether CIA agent Lennox (Ethan Hawke) is who he says he is after his deep-cover mission is compromised. WHen Sydney rescues Lennox, she discovers an instant connection: they've both lost someone they love to the job. Yet even her judgment is thrown when Vaughn and Jack discover that Lennox was pursing a technology that allows people to change their appearance.

Mac poses as Webb’s pregnant wife in Paraguay for a CIA mission arranged to takedown a terrorist with American target in sight; a less-than-confident Bud is slated to handle an appeal that charges Turner as an ineffective counsel.

When Sadik Fahd resurfaces, Mac engages in a deadly cat-and-mouse game with him once she realizes he is responsible for a CIA agent dying and an injured Harm.

When Chegwidden learns that Meredith’s engagement ring may have a black-market diamond, he is determined to trace its origins with his investigation unexpectedly leading him to the brokering ways of a Navy lieutenant.