Alias: A Higher Echelon

The search for Marshall is on while he is held captive and tortured by "Suit and Glasses," making him agree to rewrite the Echelon code. Sydney and Dixon retrieve damaged Echelon data from Vietnam where it was routed by Marshall before capture but her countermission for the CIA is foiled and SD-6 gets all the information they need to access Echelon. The CIA agrees to Irina's demands in order to prevent SD-6 from getting into the system. Meanwhile, Ariana Kane's investigation into Emily's disappearance focuses on Jack as she restricts his access to SD-6. Jack turns to Sloane for help though Sloane secretly supports Ariana's investigation. Marshall manages to send out word of his location and Sydney manages a near-escape after rescuing him.