Person of Interest

Root Cause

Series 1 - Episode 13 Root Cause



Resident computer genius Harold Finch has the useful ability to unblock any plot obstacle. He simply mutters some stuff about cloning or firewalls and suddenly he can penetrate any system, view any CCTV, access anyone’s emails.

In this episode he tunes into a household’s wifi from outside in the road using only a crisp tube – clever. But he’s not perfect, it turns out. A mysterious female computer genius with black fingernails manages to compromise his network and suddenly the boot’s on the other hard-drive.


The Machine comes up with the social security number of project manager Scott Powell, who had been laid off several months ago from a position in the construction industry, although his wife is unaware of the fact. Reese and Finch discover that he recently applied for a firearms licence and had been e-mailling threats to a congressman he blames for the loss of his job, but matters are complicated when Finch realises the man's computer has been hacked. Crime drama, starring Jim Caviezel.

Cast & Crew

John Reese Jim Caviezel
Harold Finch Michael Emerson
Lionel Fusco Kevin Chapman
Joss Carter Taraji P Henson
Zoe Morgan Paige Turco
Scott Powell Myk Watford
Leslie Powell Amy Hargreaves
Delancey Victor Slezak
Pete Matheson Damian Young
Agent Donnelly Brennan Brown
Director Richard J Lewis
Executive Producer JJ Abrams
Executive Producer Ben Brafman
Executive Producer Bryan Burk
Executive Producer Jonathan Nolan
Executive Producer Greg Plageman
Executive Producer David Semel
see more