'Person Of Interest' Season 4 Spoilers: Twitter Reacts To Amy Acker, Sarah Shahi's Shaw Shocker! [WATCH]

There is only one episode left for Season 4 of Person of Interest on CBS. In Episode 22, as the battle for supremacy between two Artificial Intelligences escalates, Twitter had lots to say about Root (Amy Acker) search for Shaw (Sarah Shahi) survive from her explosive confrontation with Control (Camryn Manheim).

As we previously mentioned, the fourth season started with Team Machine on the run. With new identities, the group had to lay low or else they would be detected by Samaritan's radar. But all things changed during the recent trilogy, when Shaw (Shahi) was taken prisoner by the mysterious Greer (John Nolan).

In our recent recap, Team Machine found themselves in two different wars. Reese and Elias (Enrico Colantoni) were both captured by rival, Dominic (Winston Duke). When Root received a call Shaw, Finch reluctantly helped even though he knew it was a trap by Samaritan. While Shaw was being taken to a different location, Root found herself trapped in Samaritan's base, taking down Martine (Cara Buono), snapping her neck like a twig, before finally surrendering.

Zap2it confirms our suspicions that it was Shaw in the car being driven away. Has she been brainwashed by Samaritan? Did she sell out Root and Finch to their enemies? The site quotes Shahi as she previously stated, "If she does come back, she's not going to come back the same Shaw, that's for sure.""

Check out what Twitter had to say:

@SassaKoKo tweets, "Root's love for Shaw is so all-encompassing and self-destructive. So intense and all-consuming. I'm scared. #PersonOfInterest #RootAndShaw"

@Bluesplinter states, "I cheered when Root did that thing to that woman last night. Needed doing. #PersonOfInterest #nospoilers"

@LaurenJergified spotted Shaw too, "OK I JUST SAW SHAW IM CRYING IM NOT OK #PersonOfInterest #SameenShaw"

Tweeting from the POI Twitter account, "@PersonInterest One of the most chilling moments in my acting career was having Martine (@CaraBuono) stroke my cheek. -Michael Emerson #PersonOfInterest"

Buono herself shared this snapshot, "@CaraBuono Huge thank you to the MOST INCREDIBLE @POIFans! @_not_innocent "Martine is going to be okay in kick ass heaven!" Or hell :) @PersonInterest"

Acker also has a sense of humor, "@AmyAcker Next week's cover identity- Root is a Chiropractor. Who wants an appointment?#PersonOfInterest"

Person of Interest continues one more Tuesday at 10pm on CBS.

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