* Directed by: Mikael Salomon
* Written by: Alex Kurtzman, Roberto Orci
Sydney's life is in danger as she is sent to Madrid to retrieve a 500-year-old sketch that contains a set of binary digits on its reverse, having to do with the Rambaldi artifact Sydney brought back from Taipei. SD-6 needs the sketch to decipher the key to its workings.
Meanwhile, Will Tippin continues his research into the cause of Danny's death and discovers a very strange anomaly concerning surveillance cameras in the zone of Danny's apartment the night he was murdered. Will is not aware of the danger he is placing himself in by doing this, but Sydney tries to make him stop.
In Madrid, Sydney meets up with her deadly nemesis, K-Directorate agent Anna Espinosa, and a fight ensues to retrieve the sketch. It ends up at a draw, as Anna keeps the key to a small suitcase Sydney has obtained. In the end they have to make an arrangement to open the suitcase together, which has the two of them looking inside the suitcase in astonishment at something that remains unrevealed.