Person of Interest: Season 3, Episode 21

Beta (29 Apr. 2014)

TV Episode  |  TV-14  |   |  Action, Drama, Mystery
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Decima hunts down Reese and Shaw using Samaritan's feeds. Meanwhile, Greer sets a trap for Finch by targeting his former fiancée, Grace.


(as Frederick E.O. Toye)


(created by), , 4 more credits »
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Episode cast overview, first billed only:
John Nolan ...
John Horton ...
John Herrera ...
Bodega Owner
Rayniel Rufino ...
Gunman / Raul
Zachary (as Robert Manning Jr.)


Finch has gone into hiding since he was unwilling to kill to protect himself and the team solely to prevent Samaritan from being activated, which Decima has now been able to do in a beta test. They all know that the team is the first on Decima's hit list, with Finch at the top of that list. Decima's task is made all the more easy by Samaritan, which, in its current state, has capabilities equal to the Machine. However, Samaritan will only get more sophisticated as it learns from what it sees. Even though Finch is no longer around, Reese still believes they should assist whoever the Machine identifies as a target or perpetrator of a violent crime, even at the risk of their own lives now that they have to avoid any camera in the five boroughs. That next person is Grace Hendricks, Finch's ex-fiancée, who Greer believes is the only person who can help him get to Finch, if only in a trade. The questions become whether Reese, Shaw and Root can protect Grace from Decima while protecting ... Written by Huggo

Plot Summary | Plot Synopsis


TV-14 | See all certifications »




Release Date:

29 April 2014 (USA)  »

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Technical Specs


Sound Mix:


Aspect Ratio:

16:9 HD
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Did You Know?


When Vigilance kidnap Control, they upload a virus disabling the power across the city, yet they still take an elevator up to attack and down to escape while in the hotel. See more »


Root: Just remember - what our Machine sees, Samaritan sees. Two gods playing with the same deck of cards.
See more »

Crazy Credits

Due to the ending of the previous episode, there is no title sequence, only a brief recap of the most relevant events leading to said ending. Also, there is no series title anywhere to be seen. See more »

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ROOT and SHAW MADE THIS SHOW! Rate_that_genre
think they are going to finish off another protagonist? cutegal07
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