Pay close attention to the 2010 Iraq scenes, which clarify why Alex's brother was targeted and how Reese's "code" has evolved.
The case brings back Terence Beale ( Keith David ), Reese’s former CIA supervisor. Beale realizes Reese is alive but chooses to omit this from his official report.
Alex is investigating the death of his brother, Paul Duncan , a soldier who Reese and Kara Stanton interrogated (and Reese eventually killed) during a 2010 CIA operation in Iraq.
This episode is a deep dive into Reese's morality and the consequences of his actions as an operative.
The Machine sends Root to work as a courier driver. She discovers Samaritan is using the courier service to spread malware via physical equipment.
Alex Duncan ( Stephen Plunkett ), a computer security expert.
The code the Machine sends to Finch translates to an Emily Dickinson poem , "Cocoon Above! Cocoon Below!", symbolizing transformation. "Person of Interest" Truth Be Told (TV Episode 2016) - IMDb
Reese ends his relationship with Dr. Iris Campbell (Wrenn Schmidt), realizing he can never truly have a "normal" life. Key Cast Members Jim Caviezel John Reese Michael Emerson Harold Finch Amy Acker Keith David Terence Beale Annie Parisse Kara Stanton (Flashbacks) Watching Guide Tips