Season 4, Episode 20 The Descent

First Aired: May 18, 2005

As one member hangs by a thread, the APO team learns the shocking truth about Sophia (Sonia Braga); Vaughn considers a life-altering decision; Nadia and Syd realize that Sloane has yielded to his Rambaldi addiction; and Jack shares a fateful meeting with Katya. Hayden Chase: Angela Bassett. Katya: Isabella Rossellini.

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  • Premiered: September 30, 2001
  • Rating: TV-14
  • Premise: A sexy, high-octane thrill ride filled with espionage, intrigue and cliffhangers. It chronicles the adventures of operative Sydney Bristow as she battles shadowy intelligence agencies, along with some seriously twisted family members. During season 2, exec… (more)

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