Sydney is abducted in Madrid. Her interrogators use memories of Vaughn to probe her mind for the secret of The Horizon - an element of an SD-6 organizational chart she saw only once. Jack traces a contact to a nursery set up in an otherwise empty building. Sydney flees her interrogation chamber to find that she is on a freighter out at sea. Irina, currently alone and resting in the Philippines, is revealed to be the person behind Sydney's abduction and interrogation.