Moments later he returns to find that Sark has disappeared. Meanwhile, Jack is determined to find the identity of "Deep Throat." He instructs Will to tell the mysterious source that he knows all about "the circumference"... and that he wants a meeting.

In London, Sloane meets with the Alliance, and threatens to resign if they won't let his cancer-stricken wife die in peace. But he is surprised to discover that the Alliance knows all about Edward Poole's deception, as well as the truth behind the murder of Jean Briault... Ultimately, the members decide to let Emily live, as her death appears to be imminent.

When Sydney returns to SD-6, she discovers that Sark has been apprehended. Dixon is suspicious of her absence and notices her injured shoulder. Over a glass of expensive wine, Sloane proposes to Sark that if he will help SD-6 find Khasinau, his life will be spared. Sark agrees.

Vaughn has a new dilemma at the CIA, when Weiss chastises him for having let Sark escape. Vaughn's feelings for Sydney are clouding his judgment, and jeopardising both of their jobs. For their next mission, Sydney and Dixon must go to a Paris nightclub, where Sark will deliver the ampoule to Khasinau...and during the meeting, Dixon will steal pages of a Rambaldi manuscript from a safe.

To crack the safe's encryption mechanism, Sydney will need to monitor Khasinau's heartbeat with a special ring, which will then transmit the pulse to Dixon's cell phone -- who will then be able to open the sophisticated safe. Meanwhile, Will establishes a meeting with "Deep Throat." A location is set... Paris... and Jack will monitor the conversation using a hidden microphone in Will's jacket.

Before Paris, Vaughn gives Sydney her counter mission -- to deliver the real Rambaldi pages to the CIA and give fakes to SD-6. But she senses that he is being unusually blunt ... possibly cold with her, and she now wonders why he is acting so oddly.

In the Paris club, Sydney assumes one of her sexiest identities...a vamp-like cabaret singer. While performing from the audience, she holds her hand on Khasinau's chest long enough to record his heartbeat... face to face with the one man who can also help her find her mother.

Moments later, she spots Will with Deep Throat's men, being escorted through the nightclub at gunpoint... She interrupts the interrogation, flies into action and overpowers the armed men... Will is alarmed -- he has never seen Sydney like this -- and they escape to Jack's car. She is furious with her father for involving Will, until Jack explains how this unknown informant has been trying to expose SD-6 publicly.

During the night, Dixon recalls the mission to Mt. Aconcagua... and Sydney having used the code name "Freelancer" on a satellite phone. When he asks about her injured shoulder, she explains that she fell while hiking, but he is suspicious.

Sloane explains that despite the chaos in Paris, they can still track Sark because of a substance added to the wine...In a private moment, Sloane thanks Sydney for not reporting Emily's breach of security...he even expresses his own regret for having Danny Hecht terminated.

Will is moved to a CIA safe house... Vaughn says that he may need to enter the Witness Protection Program for safety...or even be recruited. Later, at the hospital, Emily learns that her cancer is in remission, but Sloane doesn't know how to react. How will he convince the Alliance to let her live?

A team of SD-6 agents track Sark to his location, hoping to find Khasinau as well. Instead, they find a room with medical equipment. Using a blood transfusion to hide his trail, Sark is somewhere else... the CIA safe house. And when Will opens the door, Sark fires...at point-blank range.