12. There's Only One Sydney Bristow

Complete story — includes the ending

Four weeks later: In Minsk, Ehrmann brings Sloane to The Twelve. The First thanks Sloane for "work...thus far." The Second offers "capabilities to restore" Nadia's health. First, "one final assignment." The Third advises, "keep your eye on the endgame." Kelly recruits Anna Espinosa from prison; "a long-term, deep-cover operation...destroy Sydney Bristow." Anna abducts Will Tippin. Sloane draws Sydney "back into the field." Agents Rance and Dalton babysit Isabella. APO infiltrates a Moscow club, finding Semanko, Anna, and Will. Sydney fights Anna, who draws blood and escapes. Observing, Dr. Burris has "what we need." Ehrmann observes Anna, "Isotope Data Transfer: Complete." Rance's scanners detect Will's "subdermal device." Marshall comments, "brain stem...radio receiver" bomb. For deactivation, Anna demands Rambaldi 's Prophecy, Page 47, directing Sydney to Coimbra 's rail-station to Madrid. Jack tasks Marshall, hack the frequency; Will begins scanning in Lisbon. Sydney battles Anna, who takes Page 47 and traps Sydney, who's sprayed with chemical agent, "collecting her DNA." Will releases Sydney, but Anna activates the 30-second bomb timer to escape. Kelly congratulates Sloane, "you've fulfilled your contract," providing Nadia's "compound" cure. In Moscow, Burris applies Project Helix genetic manipulation. Despite Will's compliment, "There's only one Sydney Bristow," Anna emerges; a second.