ZERO DAY (2.21)

SYNOPSIS:
Reese and Finch realize that a virus has rendered The Machine erratic, causing it to issue numbers irregularly. As they race against the viral countdown, the team searches for a tech millionaire so elusive no one has ever seen him. Also, Detective Carter's mission to bring Cal Beecher's murderer to justice lands her squarely within the sights of the HR criminal organization.

ZERO DAY:
A Zero Day virus is a previously unknown computer virus or other malware for which specific antivirus software signatures are not yet available. A zero-day attack or threat is an attack that exploits a previously unknown vulnerability in a computer application, meaning that the attack occurs on "day zero" of awareness of the vulnerability.

READ THE FULL PRESS RELEASE: (Contains spoilers)
http://www.spoilertv.com/2013/04/person-of-interest-episode-221-zero-day.html

PROMOTIONAL PHOTOS:
http://www.cbs.com/shows/person_of_interest/photos/1000383/season-3-episode-21/

DIFFERENT VIDEO PROMO FROM CITYTV:
http://www.citytv.com/toronto/shows/person-of-interest/episodes/season-2-ep-21-zero-day/

VIDEO: SNEAK PEEK #1:
http://www.spoilertv.com/2013/05/person-of-interest-episode-221-zero-day.html

Air date: May 2, 2013
Written by Amanda Segel & David Slack and directed by Jeffrey Hunt.

IN EXTREMIS (2.20)

SYNOPSIS:
When a luminary in the world of medicine is poisoned, Reese and Finch have just 24 hours to determine the deadly toxin he was given and find the person behind the attack. Meanwhile, Detective Fusco’s past corruption catches up with him when an informant gives the Internal Affairs Bureau the crucial information they need to send him to prison.

IN EXTREMIS:
In extremis is a Latin phrase meaning "in the farthest reaches" or "at the point of death".

READ THE FULL PRESS RELEASE: (contains spoilers)
http://www.spoilertv.com/2013/04/person-of-interest-episode-220-in.html

PROMOTIONAL PHOTOS: 
http://www.cbs.com/shows/person_of_interest/photos/1000344/season-3-episode-20/

CANADIAN VIDEO PROMO: (from Citytv):
http://www.citytv.com/toronto/shows/person-of-interest/episodes/season-2-ep-20-in-extremis/

SNEAK PEEK VIDEO 1:
http://www.spoilertv.com/2013/04/person-of-interest-episode-220-in_24.html

Air date: Abril 25, 2013
Written by Greg Plageman & Tony Camerino and directed by Chris Fisher.