- Reese's style of hostage negotiation leaves a team of Mexican Drug Cartel members in a fatal car crash and a consul official's son alive.
- Shaw's first job as a member of Team Machine. We think she's having some time out but when gunmen in black SUV's pull in front of the horse and carriage she's in with the POI, she pulls off an excellent Guns Akimbo, eliminating the Mooks before they can open fire.
- The POI's introductory scene, where he responds to a threat by calmly giving a play-by-play of the Bar Brawl that's about to ensue. Even Reese is impressed.
- Fusco disarming the bomb. Bear in mind, he's not trained in bomb disposal and yet with John's scant advice succeeds in defusing it, saving R.J.
- John casually strolling into the jewelery store during a Mexican Standoff.
I'm sorry, is this place closed?
If you're going to ambush somebody use a muzzle suppressor. Losers.
In the arm, through a brick wall, in the dark. You're welcome.
- Root drives a hard bargain with her therapist. When he takes away the cellphone, she lays out several unsavoury facts she had no way of knowing in order to creep him out and prove that the machine is talking to her.
- "Nothing To Hide": Say what you want about Peter Collier, but his elegantly destructive scheme to destroy the POI is relatively admirable in it's execution.
- "Lady Killer":
- Shaw and Carter taking out the two hit men.
- Root, with The Machine's help, blasts her way through her mental asylum. The machine helps give her the correct mixture of pharmaceuticals she needs to put together a quick knockout gas, which she uses to eliminate the asylum's security. Then in a gigantic shoot out, Root successfully holds off Hersh, who was trying to kill her, getting the better of him, and escaping.
- Bonus awesomeness for reacting two seconds before Hersh stepped into the corridor catching him off guard and forcing him to go into cover and then shooting Hersh behind her back, relying on the Machine for aiming, qualifying for Crazy Awesome.
- "Reasonable Doubt":
- Finch and Reese getting Bear to act for all the world like a sick dog so they could have a reason to be at their veterinarian's in time to save her. In a perfectly coordinated Curb-Stomp Battle, the team wipes out the criminals who were trying to rob the Veternarian. Bear acquits himself well, taking out the final hostile who was using the POI as a Human Shield.
- Fusco grabbing the letter opener from Shaw without a thought as to whether his own safety was at risk.
- A extremely fed up Reese lets the armed Asshole Victim POI and her husband to kill each other, placing a pistol on the table for the unarmed husband to grab. Led to by his beautiful quote:
"I'm in the business of stopping bad things from happening. I'm not sure what's about to happen here is a bad thing."
- The icing on the cake is when Reese unties the mooring line of the POI's yacht, letting it drift away and walking off as two gunshots ring out.
- The ten year old POI who's an amateur expert in spying spots Shaw, the trained professional conducting surveillance on her. This gets a laugh from Reese.
Reese: Finch, you're not going to believe this. Shaw just got made by a ten year old''
- The ten year old PoI conducts her own amateur surveillance operation on a bunch of criminals and records hours of tapes outlining the criminal alliance between the Bratva and HR. Normally, something like this would be the crowning achievement of an FBI taskforce and she did it on her own using an old tape recorder.
- Carter delivers a superb "The Reason You Suck" Speech to her Bitch in Sheep's Clothing partner who she knew from the beginning was an HR mole, points out she's made sure his mission was a failure by feeding him mostly false information, kills his associate (who was trying to shoot her) with her partner's personal handgun, and blackmails him into serving her. The shocked look on his face as he realises the tables have been turned makes it all the more satisfying after he previously delivered a venomous Motive Rant.
Carter: You don't work for HR anymore, son. You work for me
- Shaw interrogates the POI's drug-addled cousin Vadim, who's been neglectful of Gen and gave her up to the Russian Mafia, using the promise of more drugs to entice his cooperation. After getting what she wants, Shaw pours out some powder on the glass coffee table and hands Vadim a rolled-up dollar bill so he can get a snort—and then smashes his face into the coffee table, leaving him in a messy heap in the wreckage of his apartment.
- Finch and Shaw destroying a drug lab:
Shaw: How much do you know about chemistry?
- Reese vs Simmons.
- Did you miss me?
- Shaw completely ignoring her injuries for most of the episode, and when she does finally treat them? She does so by raiding an ambulance, taking out Russian thugs, and then forcibly extracting the head Russian's blood. Then she calls Simmons and and forces him to put the girl on.
- "Mors Praematura"
- Root's entire scheme.
- Credit where credit is due, Root was just following orders (admittedly with her usual flair). The entire plan was the Machine herself being The Chessmaster.
- The Machine also gets points for becoming exponentially better at her predictions. Almost a day before it went down, she predicted Collier and Vigilance would snatch the POI and assassinate his hacker brother, so she arranged for Root to be turned in to the CIA, arranged an escape route and new life for the hacker, alerted Team Machine to the POI, prompted Root to put aside a backup gun... The Machine is showing the makings of becoming an excellent schemer. And it was almost elegant the way it arranged to take care of Collier's group from two directions - and so while Collier was so focused on Reese, he didn't see Shaw and Root coming.
- The ambush itself was full of awesome. Initially things go well for Vigilance with Collier using some exploding paint cans to crash the CIA prisoner transport. He's then able to pin down Reese with his gun while his men get to work hunting for their target. However, Reese begins to fight back while Root, who's broken out of the prisoner transport and packed her own machine pistol under a park bench recovers it and begins mowing down much of the Vigilance hit squad, even trading shots with Collier in slow motion when they go for the Sloan brothers. Later she gets cornered by the survivors of the Vigilance team but they notice she's beaming even when they have her dead to rights. Cue Shaw pulling a Big Damn Heroes moment and gunning them down from behind.
- Shaw makes a wielding torch out of Spaghetti and an oxygen bottle.
- Shaw's reaction to hearing her job with Root is done. She promptly punches Root in the jaw knocking her out.
- Finch's Shut Up, Hannibal! to Root, after she accuses him of going against the Machine's wishes by keeping her captive. He makes her doubt the Machine.
- "The Perfect Mark"
- Carter pulling off her The Chessmaster act to brilliance. She conducts a complex series of false flag operations trying to start a war between the Russian Mafia and HR in order to get revenge for the events of Season 2, and it works! Leaving the head of HR in a floundering mess and the Yogorov family crying for blood.
- She gets Carl Elias to deliver her intelligence on the 38 HR members to the current head of the Yogorov family and he even cooks pasta for the man who has every reason to kill him and lives.
- The highlight of Carter's scheming is when using a sniper rifle she attacks Quinn in his office in broad daylight in order to goad him into making a mistake by making him believe the Russian Mafia is gunning for him And when he tries to have some Russian Mafia hitman executed she places a phone call to the FBI drastically compromising the security of HR.
- Carter sadly seemingly grips the Idiot Ball in the end and walks into an ambush when trying to legally arrest Quinn. But she even prepared for that eventuality and arranged for Harold to listen in on her confrontation with Quinn by hacking his cellphone allowing Reese to burst in at the right moment, intervene and extract Carter and Quinn leaving several HR officers kneecapped in their wake
- "The Crossing"
- "Lionel? It is going to be okay."
- Villainous one for Officer Patrick Simmons. He may not be an ex-CIA assassin but he gives Team Machine a serious run for their money with his strategic use of HR's resources and criminal contacts when hunting down Reese, Carter and Quinn.
- Fusco telling off Simmons et al:
Simmons: From the size and shape of this key, I'd say it opens up a safe deposit box.
Fusco: It's my locker at the Y. You're welcome to my dirty jock.
- After being upstaged and repeatedly being treated as the resident Butt Monkey for most of Season 3, Fusco breaks out of his restraints and crushes the windpipe of the HR officer who was about to kill him and does so while severely beaten up and with broken fingers.
- Finch readily goes out into the field to recover Reese and with the smooth use of a taser and getting John arrested, he succeeds in saving Reese from the final HR officer gunning for him.
- Carter's operation to destroy HR actually succeeds and she even gets reappointed as a detective. But then things take a turn for the worse when Simmons ambushes her along with John.
- However, she actually steps in the way of several bullets aimed at John that would have killed him, and sacrifices her life in the process
- Even as she goes down Carter is still able to draw her Glock 19 and loose off one accurate round which hits Simmons
- "The Devil's Share"
- The entire opening, set to Johnny Cash's cover of Hurt. It is a phenomenal piece of cinematography, suceeding in conveying the emotions all the characters are going through, without any sound, just the pictures and the music.
- Despite their Tear Jerker nature, John's violent antics are pretty impressive especially since he's conducting them hours after being shot and is slowly bleeding to death.
- John's stone cold, bone-chilling speech to Quinn:
John: You do what you say. So do I. I'm not gonna threaten to kill you. I'm going to kill you... whether you tell me or not. No bargaining. In three minutes... you're dead. I've killed many people. Never bothered me much. That's why I was good at it. I didn't like them suffering, though. Took me years to figure out how to do it quickly, painlessly. But if you don't tell me, I'm gonna forget all that, understand? And I'll make the last three minute of your life last forever.
- Fusco vs Simmons. It's not as one-sided as the beating Reese gave Simmons five episodes earlier, but Fusco wasn't nearly as well trained and was fighting with one hand in a cast, and still took him down.
- Arguably the most awesome part of the episode.
- His preceding speech is just as brilliant, if not entirely tear jerking:
Fusco: That's just it. I could've been just like you, a bottom-feeder who turns on his own kind. For what? Money, power? I got lucky. I had a partner. She was good for me. For a lot of reasons. She reminded me that I could be good again too. I could be a good father, a good friend. A good cop. I'm not gonna let you undo all the good she did. Carter saved my life. She...she saved me from myself. Because she believed in me. And I'm not gonna throw that away on a piece of crap like you.
- Root utilises her "Analogue Interface" status to the fullest extent, disabling multiple Russian thugs with a epic use of Guns Akimbo and Improbable Aiming Skills, even impressing Shaw who despises her.
- Elias and Scarface take the time to deal with Simmons permanently when he's trapped on a hospital bed.
- Topped by the magnificent final conversation between Simmons and Elias:
Elias: Well, there remains a debt. Civilization rests on the principle that we treat our criminals better than they treated their victims. That we not stoop to their level. But you and I are outliers. We're not really a part of civilization. We're something... older. Which means, of course, that we can do the things that civilized people can't. I offered to kill you for Detective Carter many times, and she always said no. She was civilized to the very end. I don't think she liked me. But I liked her very much. And you killed her. So now I consider it my responsibility to fix the particular problem that is you, Officer Simmons.
Simmons: You really think you're going to be the one to kill me?
Elias: No. No, my friend is going to kill you. I'm just going to watch.
- Fusco vs. Reese. Fusco is sick and tired of Reese's trip over the Despair Event Horizon when he starts spouting borderline nihilistic stuff about how nothing matters. So Fusco throws him out of the bar where he was drinking and fights him. Yes, Fusco gets the worse of it (there's that whole problem of fighting someone who's a better fighter than you), but the fact that he can still keep up with Reese just shows how Fusco has grown.
- Control's reveal. Elias would be proud.
Root: You're too late. The Machine's already talking. You're too old; older than forty. You can't hear sound above fifteen kilohertz... but I can. With the ear I've got left. My friend's been beeping Morse code at that frequency since you brought your phone in here. She's been talking to me the whole time, telling me about you. You're scared of me... even with all these guards watching. By the way, that one has a bum knee. You're so scared of me, that you hid a knife in your pocket. I couldn't reach it. Until you got close enough to cut me...
- After the fiasco in Season 2 Greer makes his triumphant return successfully screwing over Northern Lights, Vigilance and Team Machine while making off with the Samaritan Drives.
- Fusco continues his streak and delivers a borderline "Reason You Suck" Speech to Reese in jail.
- Hersh managing to take down Root.
- The Machine telling Control who's in charge, using Root as a translator.
The Machine/Root: I don't belong to anyone anymore. You, however, are mine.
- The Machine gets one for being able to manipulate Reese's flight schedule and alert him to a Po I, all without Finch's intervention.
- Reese's fight with the two assassins.
- The whole episode was a CMOA for Reese.
- Shaw unnerving the "Facilitator".
- Finch remote-controlling an entire jumbo jet, and landing it safely.
- "While I'm in Italy, I thought I would get fitted for a new suit."
- Jiao Lin cutting herself loose from her bonds while Finch was talking to her.
- Lionel Fusco being able to secure architectural drawings and plans, then smoothly maneuvering targets of the scam Harold wants to pull off just through normal, routine-seeming police procedures.
- And then Finch maneuvering the security company via hacks and some social engineering with Jiao's help.
- Reese doing his usual Dynamic Entry as a One-Man Army to rescue Jiao's daughter.
- "Last Call"
"Before you make a grave error of judgment, permit me to describe what I have in my hand. It's a severed electrical cable connected to this generator. Current is running through it at ten times the amperage required for electrocution. All I have to do is drop it in that water, and within three seconds, the muscles in your heart will fibrillate. Now, I'm not a violent man but not only have you tried to harm this young woman and an innocent child, you have shut down a 911 call center in one of the more dangerous cities in the country. So now there are two things that will keep me from ending your life right now. First, I want you to drop the gun. Second, I need to hear the sound of your voice
- Not quite as awesome, but definitely a levelling-up for Fusco: casually fielding numerous questions with some Awesomeness by Analysis
Fusco: Wrong edge. Wound was serrated, remember?
Detective Kane: Suspect's guilty as hell, but we can't get his DNA without a warrant.
Fusco: Ever heard of dumpster diving, Kane?
Detective Harrison: Tara Cooke, 29. Found by the East River yesterday morning. Head bashed in, wallet stolen. Mugging gone bad, right?
(after initially brushing off Harrison)
Fusco: See these bruises? Livor mortis. Happens when a body stays in one place, okay? Tara was found on her right side. These bruises are on the left. And look: forensics found industrial carpet fibers stuck in the wound. But she wasn't wrapped up in any carpet.
Harrison: (realization) Body was moved.
- Reese and Shaw working together to storm the place Aaron was being held - and than as Reese defuses the bomb, Shaw efficiently mops up.
- The wounded Decima Technologies agent held captive by Reese and Kara decided to kill himself when he jumped out of the abandoned office floor rather than squealing out to them about his boss, Greer.
- Shaw shows up at the end of the episode to utterly demolish the Chinese team and kill Dillinger. If Finch had not managed to keep hidden, it's likely that she would have canceled the series before it even began.
Special Counsel: Our agent arrived and neutralised him, then proceeded to dispatch several others.
- Finch recognizing the code of the machine and plotting the virus within a virus used by Decima on the fly.
- This entire episode was one for Root.
- Reese vs. Vigilance goons in Cyrus' apartment.
- Shaw is confronted by Collier and his Vigilance henchmen. Collier offers her a chance to join Vigilance, but Shaw turns him down saying that he's nothing more than a terrorist, and she kills terrorists.
- Greer once again gets everything he wants.
- Reese casually commandeering the truck that was supposed to deliver Omar to the airport, and casually shoving the other driver out the door before peeling out.
- Lionel Fusco is a mere NYPD Cop going up against French Legionnaires you'd think he'd be completely out of his league. You'd be wrong.
- Root shows that she's learned a thing or two when Greer finds several ways to increasingly reduce the effectiveness of The Machine. She uses Bear to track the man down the old fashioned way via his scent and it works
- Credit also to Greer, who has a counter for every single plan Root uses. Yes, even Bear. He anticipated she would use Bear to track him, and so arranges to confront her with his men ready in a crossfire.
- "Most Likely To..."
- Reese delivering a beatdown on "Phil", who earlier mocked him about his swiftness of fighting speed. After clocking the man with a heavy can of hamburger beef, he says: "How's that for fast?"
- Shaw and Reese delivering an effective one-two punch on the last Vigilance assassin, with Shaw launching an improvised explosive at him, and Reese nailing the mook with his last bullet.
- Vigilance in general for this episode Even with the failure to kill Reese and Shaw, they managed to take out a POI at the start of the episode and acquire damning evidence of the existence of the Northern Lights Project
- Collier gets one by trying a more cunning approach in eliminating Northern Lights who decimated his people in a straight fight back in "Alethea". He sends the compromising documents about the project to the media creating a massive public scandal and forcing Control's superior to have her put the organization on a permanent hiatus.
- "Death Benefit"
- "A little late for the flu shot" kicks off Reese and Shaw's excellent double-teaming of a Decima assassin to save Grace.
- Lionel Fusco, Samantha Shaw, and John Reese working as a well-oiled team to waylay Decima's mook masquerading as an FBI agent:
Maybank: I have a warrant. It's notarized.
Shaw: That's a cute trick, but you ain't getting anywhere.
Fusco: (walking up) Is there a problem, Detective? (beat) Lieutenant Fusco.
Maybank: Special Agent Maybank.
Fusco: Oh, of course. We were just about to question your suspect. I had a feeling she was tied to something bigger. Now, if you like, I can bring her to you in the interrogation room. (leads Maybank to a room) Right this way. It'll just be a second.
Maybank: Thank you. (turns to notice Reese lurking behind the door)
(Fusco, holding the doorknob on the other side, is wearing a huge grin as the subtitles indicate: "Blows thudding, man grunting".)
- Root Macguyvering an induction coil to overload the police station cameras, then setting off an explosion to hide the unmarked getaway car speeding away from the police station (and incidentally, Decima's sniper team).
- "If they harm her, in any way, kill them all".
- Grace gets one when she all but tells Greer to go screw himself when he implies that Harold lied to her.
Grace: I don't know who you are or how this ends, but we're done here.
- "A House Divided"
- Vigilance outplays everyone, including The Machine, and takes Finch, Greer and Control prisoner.
- "Deus Ex Machina"
- Decima Technologies and John Greer get so many during this episode due to an epic Batman Gambit which leaves all their enemies dead or on the run and the company having achieved all its operational objectives.
- Firstly Greer turns the tables on Peter Collier who seemingly held all the cards, when his operatives arrive and kill most of Colliers men. Greer then reveals that Vigilance was created by Decima as a False Flag Operation, twists the knife by telling Collier he was the one who sent the mysterious text messages which caused Coller to become a terrorist and after a few more seconds of gloating, has Lambert, his subordinate, blow him away
- Secondly Decima conducts their own bombing, giving a pretext to have Samaritan implemented. As a result of this, they achieve substantial influence over American counter-terrorist efforts, are in a position to subvert the world's most powerful nation in a quest for world domination and now have the ability to eliminate any potential threats such as Team Machine
- Finally because of Decima's actions Team Machine is forced to evacuate the library, adopt new cover identities and split up, making it considerably difficult for them to oppose Decima
- Control gets one for being the only "defendant" who repeatedly lampshades what an absurdity the Kangaroo Court is, points out the rights that Vigilance must allow Finch to have, and then refuses to play along with Collier's show. All of which visibly upsets him.
Control: "As a sworn officer of the US government, I can neither confirm nor deny anything pertaining to this matter. And I will say the same damn thing to every other question until the moment you put that gun to my head and pull the trigger."
- She further demolishes Collier's attempts at portraying himself as a good guy by recounting her experience on 9/11 where she was nearly killed by the plane which demolished a portion of the Pentagon.
Control: "Where were you when Flight 77 hit the Pentagon? Because I was inside it. I carried out the wounded. I covered up bodies. And I have spent every day since putting bullets in the people responsible, and in anyone else thinks they can do that to our country again. You wanna shoot me because I had to tap a few phone calls, read a few e-mails? Then, you go right ahead. But you better turn that gun on yourself next, Mr. Collier, because you have broken just as many laws, and the only difference is I didn't wrap myself up in the American flag, and try to convince people that I was a hero."
- And when Collier finally has enough and tries to kill her with his Shotgun, the look she gives essentially dares him to pull the trigger
- Hersh gets one for surviving several gunshots, and attempting to defuse the bomb Decima has set up. He may have failed but points for trying to the bitter end to do his job
- Special mention to the ending montage on how effectively it hammered home just how much Decima emerged the victor of the season Set to the tune of the Awesome Music Radiohead's "Exit Music For A Film", the montage cuts from Finch and Reese evacuating the library as Samaritan dispatches an NYPD ESU SWAT team to storm the building, the Vigilance group being subjected to The Purge by Decima assets and law enforcement, the members of Team Machine sharing final looks with each other as they depart to places unknown and as the music begins to swell, we get to see the full power of Samaritan unveiled, with it racking up "Deviants" to be terminated in the future. It then closes with the money shot of Greer strolling into the room and asking Samaritan for commands. Heartbreaking? Yes. A Downer Ending? Completely. But successfully capping off the biggest villainous Crowning Moment of Awesome of the season and driving home just how much our heroes have lost and showing that the game in Person Of Interest has been changed forever in an epic fashion? Absolutely.