History Recap / PersonOfInterestS04E19

--> '''Finch:''' If the time comes for me to pick up a weapon, all will truly have been lost.

->"There's no way to keep the victim safe if the perpetrator is Samaritan!"
-->'''— Finch'''

* BatmanGrabsAGun: Averted by Finch, who is repeatedly offered a gun and firearms training by Reese, but refuses, saying that "When the time comes for me to pick up a firearm, all will truly be lost."

* TheBusCameBack: [[Recap/PersonOfInterestS04E14 Zoe Morgan]] is hired to clean up the mess at Khan's company.
** Martine also comes back after a fairly long absence.

** During the episode flashback focusing on the end of his career at MI6, Greer utilized a Walther PPK. He breaks another one out in this episode to murder Khan.

* CurbStompBattle: Look closely in the climax and you'll see that it's not Team Machine that's on the defensive. Reese and Root carve through multiple Decima assets despite being outnumbered and only withdraw due to losing the POI and a lack of ammo.

** Averted with, ironically enough, the Machine itself. Samaritan couldn't find the Machine on any networked device with Khan's software installed around the world. This debunks the popular fan theory that the Machine is running on regular people's personal devices and all but confirms that the servers "Thornhill" moved are still active.
* EvilBlonde: Averted. Martine's dyed her her brown. [[HypocriticalHumor Root lampshades this.]]

* HeroesWantRedheads: Zoe says that she thought John would avert this, and was surprised [[Recap/PersonOfInterestS04E18 with him and Iris beginning a relationship]].

* BatmanGrabsAGun: Averted by Finch, who is repeatedly offered a gun and firearms training by Reese, but still maintains that "when he has to grab a gun, all will be truly lost" anyway.
* BoringButPractical: In a sense, Reese's M4 carbine. While not the most exotic weapon POI has featured, the scope and having switched the fire-selector to semi-automatic allows John to Curb-Stomp the Samaritan team with incredibly accurate single shots rather than wasting rounds with the usual suppression/ATeamFiring that Team Machine usually does. Notably, this is what any RealLife trained soldier would do in combat.

* BoringButPractical: In a sense, Reese's M4 carbine. While not the most exotic weapon POI has featured, the scope and having switched the fire-selector to semi-automatic allows John to Curb-Stomp the Samaritan team with incredibly accurate single shots rather than wasting rounds with the usual suppression/ATeamFiring that Team Machine usually does. Notably, this is what any RealLife trained 8 soldier would do in combat.

* ExactWords: A surprisingly brutal one. Khan demanded that Greer allow him to look into the eyes of "God" (Samaritan). Greer obliges him with a quick shot to the chest with his Walther PPK. Then as the life drains out of Khan, Samaritan shows all the surveillance it's been doing on him, the footage reflected in Khan's lifeless eyes.

Sulaiman Kahn, the billionaire [[InsufferableGenius eccentric genius]] who founded the world's foremost computer security company, wakes up to learn that the company has been hacked. His private e-mails--including all the ones where he rips into his friends and co-workers--are being discussed on all the morning news shows, steamy pictures of his [[TrophyWife estranged wife]] are in the hands of the tabloids, the board of directors has just fired him after seeing financial records that make it look like he was embezzling from the company, and [[FromBadToWorse the IRS is raiding his condo]]. Kahn is convinced that only an artificial intelligence could breach his company's security, and that the AI is [[ItsPersonal out to get him]]. He doesn't know [[ProperlyParanoid just how right he is]]: the hacker was Samaritan, which wants to use his antivirus software (and the "immunization chip" he's developing) for its own ends, and it ''is'' out to get him--which is why The Machine gave Finch Kahn's number.

* BoringButPractical: In a sense, Reese's M4 carbine. While not the most exotic weapon POI has featured, the scope and having switched the fire-selector to semi-automatic allows John to Curb-Stomp the Samaritan team with incredibly accurate single shots rather than wasting rounds with the usual suppression/ATeamFiring that Team Machine usually does. Notably, this is what any RealLife trained soldier would do in combat.

* {{Expy}}: Khan's software seems to be one for [=McAfee=] Antvirus. Arguably, Khan himself may be one for John [=McAfee=] but a little less... eccentric.

* InsufferableGenius: Kahn seems to have been this throughout his career, and it's the main reason why everyone, including his closest friend, turns on him so quickly after the hack

* ShaggyDogStory: The B-plot with the briefcase. Root gasses a restaurant to steal it, tries to no avail to break into it, and eventually the Machine has to text her the combination. The only thing in the briefcase is a Fabergé egg, [[CrowningMomentOfFunny which Root then throws against the wall, shattering it]].
* TheBusCameBack: [[Recap/PersonOfInterestS04E14 Zoe Morgan]] is hired to clean up the mess at Khan's company.
* TheJeeves: Khan's assistant, who stays with him even when his wife, company, best friend, [[ArsonMurderAndJaywalking and lawyers]] leave him.

** ''Samaritan'' plays this straight. When Reese shoots the cameras, its first instinct is to send for maintenance.

Sulaiman Kahn, the billionaire [[InsufferableGenius eccentric genius]] who founded the world's foremost computer security company, wakes up to learn that the company has been hacked. His private e-mails--including all the ones where he rips into his friends and co-workers--are being discussed on all the morning news shows, steamy pictures of his [[TrophyWife estranged wife]] are in the hands of the tabloids, the board of directors has just fired him after seeing financial records that make it look like he was embezzling from the company, and [[FromBadToWorse the IRS is raiding his condo]]. Kahn is convinced that only an artificial intelligence could breach his company's security, and that the AI is [[ItsPersonal out to get him]]. He doesn't know [[ProperlyParanoid just how right he is]]: the hacker was Samaritan, which wants to use his antivirus software for its own ends, and it ''is'' out to get him--which is why The Machine gave Finch Kahn's number.

Sulaiman Kahn, the billionaire [[InsufferableGenius eccentric genius]] who founded the world's foremost computer security company, wakes up to learn that the company has been hacked. His private e-mails--including all the ones where he rips into his friends and co-workers--are being discussed on all the morning news shows, steamy pictures of his [[TrophyWife estranged wife]] are in the hands of the tabloids, the board of directors has just fired him after seeing financial records that make it look like he was embezzling from the company, and [[FromBadToWorse the IRS is raiding his condo]]. Kahn is convinced that only an artificial intelligence could breach his company's security, and that the AI is [[ItsPersonal out to get him]]. He doesn't know just how right he is: the hacker was Samaritan, which wants to control his antivirus software, and it ''is'' out to get him--which is why The Machine gave Finch Kahn's number.

* WrongGenreSavvy: Khan correctly deduces that the attack on him is engineered by an artificial intelligence but he thinks that it has something to do with the new technology he is developing. Unfortunately for him, he is actually caught in the middle of a war between two artificial intelligences and he was targeted simply because Samaritan needed his company's infrastructure and he started asking too many questions.

** Reese speculates that Khan's "immunization chip" is related to [[Recap/PersonOfInterestS04E15 the transponders Samaritan was working on in Maple]].

Suliman Kahn, the billionaire [[InsufferableGenius eccentric genius]] who founded the world's foremost computer security company, wakes up to learn that the company has been hacked. His private e-mails--including all the ones where he rips into his friends and co-workers--are being discussed on all the morning news shows, steamy pictures of his [[TrophyWife estranged wife]] are in the hands of the tabloids, the board of directors has just fired him after seeing financial records that make it look like he was embezzling from the company, and [[FromBadToWorse the IRS is raiding his condo]]. Kahn is convinced that only an artificial intelligence could breach his company's security, and that the AI is [[ItsPersonal out to get him]]. He doesn't know just how right he is: the hacker was Samaritan, which wants to control his antivirus software, and it ''is'' out to get him--which is why The Machine gave Finch Kahn's number.

* WhyDontYouJustShootHim: [[AvertedTrope Greer, in true Greer fashion, does]].

* TheBadGuyWins: The POI leaves the protection rof Team Machine, gets apprehended by Samaritan and after a brief conversation is shot by Greer who smugly lights up a cigar while standing over the man's corpse. The Samaritan screen then [[VictoryPose triumphantly]] lights up with a "threat eliminated" message.

* TheBadGuyWins: Samaritan succeeds in eliminating Khan, even if simply due to Khan's erratic behavior. Both Greer and Finch [[Foreshadowing foreshadow]] earlier on that Khan's curiosity would be the death of him.

* DownerEnding: The POI leaves the protection rof Team Machine, gets apprehended by Samaritan and after a brief conversation is shot by Greer who smugly lights up a cigar while standing over the man's corpse. The Samaritan screen then [[VictoryPose triumphantly]] lights up with a "threat eliminated" message.

** This isn't the first time [[Recap/PersonOfInterestS03E03 Root has used KnockoutGas]].

* CallBack: A few.

** During the episode flashback focusing on the end of his career at MI6, Greer utilized a Walther PPK. He breaks another one out in this episode to murder Khan.

Suliman Kahn, the billionaire EccentricGenius founder of the world's foremost computer security company, wakes up to learn that the company has been hacked. His private e-mails--including all the ones where he rips into his friends and co-workers--are being discussed on all the morning news shows, steamy pictures of his [[TrophyWife estranged wife]] are in the hands of the tabloids, the board of directors has just fired him after seeing financial records that make it look like he was embezzling from the company, and [[FromBadToWorse the IRS is raiding his condo]]. Kahn is convinced that only an artificial intelligence could breach his company's security, and that the AI is out to get him. He doesn't know just how right he is: the hacker was Samaritan, which wants to control his antivirus software, and it ''is'' out to get him--which is why The Machine gave Finch Kahn's number.

** Later Reese lays down scarily accurate fire with an M4 carbine when engaging Samaritan assets.

Suliman Kahn, the brilliant, eccentric billionaire founder of the world's foremost computer security company, wakes up to learn that the company has been hacked. His private e-mails--including all the ones where he rips into his friends and co-workers--are being discussed on all the morning news shows, steamy pictures of his [[TrophyWife estranged wife]] are in the hands of the tabloids, the board of directors has just fired him after seeing financial records that make it look like he was embezzling from the company, and [[FromBadToWorse the IRS is raiding his condo]]. Kahn is convinced that only an artificial intelligence could breach his company's security, and that the AI is out to get him. He doesn't know just how right he is: the hacker was Samaritan, and it ''is'' out to get him--which is why The Machine gave Finch Kahn's number.

Suliman Kahn, the brilliant, eccentric billionaire founder of the world's foremost computer security company, wakes up to learn that the company has been hacked. His private e-mails--including all the ones where he rips into his friends and co-workers--are being discussed on all the morning news shows, steamy pictures of his estranged "trophy wife" are in the hands of the tabloids, the board of directors has just fired him after seeing financial records that make it look like he was embezzling from the company, and [[FromBadToWorse the IRS is raiding his condo]]. Kahn is convinced that only an artificial intelligence could breach his company's security, and that the AI is out to get him. He doesn't know just how right he is: the hacker was Samaritan, and it ''is'' out to get him--which is why The Machine gave Finch Kahn's number.

The latest number is the head of a computer security company who's the victim of Samaritan.

* DownerEnding: The POI leaves the protection of Team Machine, gets apprehended by Samaritan and after a brief conversation is shot by Greer who smugly lights up a cigar while standing over the man's corpse. The Samaritan screen then [[VictoryPose triumphantly]] lights up with a "threat eliminated" message.

* EvilBlonde: Averted. Martine's dyed her her brown. Root lampshades this.

--> ''Greer'': "Very well".

--> ''Greer'': "Very Well".

** ShownTheirWork: His cigar of choice is the [[Man of Wealth and Taste ultra-expensive]] [[http://www.gurkhacigars.com/home.php Gurkha.]]