'Person Of Interest' Season 4 Spoilers: Are Jim Caviezel, Camryn Manheim Ready For "Control-Alt-Delete?" [WATCH]

Season 4 of Person of Interest delivers the climatic third part of its epic and action-packed trilogy on CBS. After Shaw (Sarah Shahi) went out in a blaze of glory, what will Finch (Michael Emerson), and Reese (Jim Caviezel) discover from Control (Camryn Mannheim)'s plans are in 'Control-Alt-Delete?'

In the first part of our recap, the Samaritan wanted to meet with Root and sent in its avatar. Seeing The Machine as a fallen God, the Samaritan would take its place and promised to enslave humanity, in order to protect it. In the cliff-hanger, the Samaritan unleashed a virus onto Wall Street and forced the stocks trade to take a nosedive.

In the second part of our recap, the Machine had to come up with a scenario when Root and the others were trapped in a deadly shootout. After two simulations, the Machine predicted the deaths of Finch (Emerson), Reese (Caviezel), Fusco (Kevin Chapman), and Root (Amy Acker). Running out of time, the Machine chose the third simulation, where no one in the team was sacrificed.

Unfortunately, Martine and her operatives arrived ahead of time. In their last moment together, Shaw (Shahi) kissed Root (Amy Acker) before sacrificing herself to save them. Root screamed as loud as she could as she watched Martine point her gun at Shaw's head.

Showrunner Greg Plageman tells TV Line part three will take "a hard left turn. Camryn Mannheim (as Control) is very prominent in this episode, and we're going to see what lengths our guys are willing to go to to avenge Shaw."

Check out Control-Alt-Delete here:

As we previously mentioned, Shahi is indeed leaving the show because she is pregnant in real life. This means Shaw will indeed be written off somehow, which could lead to an interesting direction in the series.

Person of Interest continues Tuesdays at 10pm on CBS for the third part of its trilogy. Readers, what did you think of Control-Alt-Delete?