Sydney Bristow is a grad student by day, international spy by night. Her happiness over new engagment is shortlived as she learns some horrible truths about who she works for.

In her new role as a double agent for the CIA, Sydney is intent upon destroying SD-6 within weeks.

Sloane sends Sydney and Dixon to Madrid to steal a lockbox, containing a sketch with what appears to be digital code drawn in the late 15th century by a seer, Milo Rambaldi.

Francie confronts her boyfriend about a rendezvous with another woman; Sydney reaches out to her estranged father.

Will tells Francie that he's been investigating the death of Danny. Sydney learns from Vaughn that her father may also be working for the FBI.

Sydney begins to form an opinion that Jack's suspicious activities led to the death of her mother 20 years earlier, creating an even deeper tension between them.