Sydney and APO attempt to discover whom Gordon Dean is working for and what their end game is. Meanwhile, when the group claiming to have a cure for daughter Nadia continues to play mind games with him, Sloane struggles for control.

One month after the baby is born, Sydney is taking time off from work. Will is what pulls her back in the field while she's on maternity leave. The enemies realize that the best way to hurt Sydney is through her friends. Anna Espinosa also returns.

While the gang starts to learn more about the Prophet 5, Sloane is distressed to learn that Prophet Five's cure for Nadia is just as likely to kill her. Meanwhile, Devlin returns, the search for Anna Espinosa continues, Rambaldi's prophetic Page 47 resurfaces, and Sydney offers Renée a job at APO.