This episode is a deep dive into Reese's morality and the consequences of his actions as an operative.
Pay close attention to the 2010 Iraq scenes, which clarify why Alex's brother was targeted and how Reese's "code" has evolved. Person of Interest 5x3
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. This episode is a deep dive into Reese's