Finch and company are set to halt Samaritan from crashing the machine in "Person of Interest" season 5 episode 13, the season finale. Also, it is revealed that the series' final episode is set to be emotional and will end with a cliffhanger.

"Person of Interest" season 5 episode 13 is entitled "Return 0." According to Spoilers Guide, the episode will see Finch, Reese, Fusco, and Shaw start their last mission, which is to prevent Samaritan from destroying the machine, which will let hem stick onto humanity. Whether the team succeeds with the plan or not is yet to be revealed.

"Return 0," the final episode of "Person of Interest" season 5 is set to be emotional, according to show creator and executive producer Jonathan Nolan. In his interview with Deadline, Nolan said that the episode is set to be more of an emotional finale than anticipated. He also teased that the episode 13 is set to revisit relationships that fans had never got a chance to get to before.

As per Nolan, the season finale had not quite ended exactly as fans had anticipated, but the body count was the same, which suggests that no one is set to die when the series ends.

Meanwhile, it is assumed that "Person of Interest" season 5 finale is set to end with a cliffhanger, as series actor Michael Emerson, who plays the role of Harold Finch in the show, is positive that the series is set to have a spin-off or another season. In his interview with TV Guide, he said that the ending has been really satisfying and still ever so slightly open-ended, so it would not be out of the question if someone had wanted to reboot the show someday.

"Person of Interest" season 5 episode 13, "Return 0" (season finale), is set to air on June 21.