Grace, Root, Shaw, Nathan, and Greer all return as the the Stanton virus threatens to end the POI team. Check out the official guide for Person of Interest Season 2 Episode 21, "Zero Day," airing May 2 on CBS.
THE COUNTDOWN ON A MYSTERIOUS VIRUS CAUSES THE MACHINE TO MALFUNCTION JUST AS THE POI TEAM TRIES TO LOCATE AN ELUSIVE MILLIONAIRE WHOSE NUMBERS COME UP
- 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.
- Carrie Preston, Amy Acker, Sarah Shahi, Brett Cullen, Jay O. Sanders and John Nolan guest star.