 When Sydney learns that Marshall has been kidnapped, she struggles against a heartless Sloane to bring Marshall back whom is being tortured by the same Taiwanese torturer Dr. Lee "Suite and Glasses" to uncover the code for the top secret ECHELON security system whom tries to stall for time. Sydney and Dixon are instead sent to Ho Chi Minh City, Vietnam to recover the hard drive for ECHELON. Meanwhile, Kendall and the rest of the CIA frantically tries to prevent SD-6 from gaining access to ECHELON... and Jack realizes that the only one who can help them is Irina.