The Plot:
Sit back, it's gonna be complicated. In 2029, John Conner (now played by Jason Clarke) is the leader of the resistance against Skynet, the computer intelligence that wants to wipe out the human race. The Resistance knocks out Skynet's main base in Colorado. Desperate, Skynet activates its backup plan— using its recently invented time displacement unit to send a T-800 Terminator unit back in time to 1984, to kill John's mother, Sara Connor, thus preventing his birth.
John and his troops find the time machine and discover Skynet's plan. Kyle Reese (now played by Jai Courtney), John's right hand man, volunteers to go back in time to save Sarah. John warns Kyle that the Sarah Connor he'll find in 1984 will be weak and vulnerable, and quite different from the warrior legend he knows.
As Kyle enters the machine and it's activated, he somehow "remembers" fragments of a past which can't possibly exist. He sees an alternate timeline version of himself at age twelve, warning himself of danger in 2017. Just as he's transported to the past, he sees one of the Resistance soldiers (played by Matt Smith of Doctor Who fame) reveal that he's really an advanced Terminator model, and attack John Connor. Zoicks!
The T-800 (played by Arnold Schwarzenegger, of course) arrives in 1984 LA and confronts three punks at the Observatory, just as we saw it do in the very first film. As it demands the punks' clothing, an older-looking T-800 shoots the younger model. The two grapple and the Old Terminator is overcome. Suddenly Sarah Connor (now played by Emilia Clarke) arrives and shoots the Young Terminator, deactivating it.
Meanwhile, Kyle arrives in 1984 and breaks into a store to steal some clothing, again, just as we saw in the first film. Several police officers pursue him through the store. He takes the gun from one and asks it the year. The officer reveals himself to be a shape-shifting, liquid metal T-1000, also sent back in time by Skynet (I think?) to stop Kyle from stopping the first Terminator. Got all that? Jesus, my head's hurting.
Kyle and one of the cops, whose name is O'Brien (remember that name!) are about to be killed by the T-1000. Just then Sarah drives a van through the storefront and saves Kyle, once again uttering the inevitable line, "Come with me if you want to live." You know, you really don't have to say that in every movie, guys. We got it two or three movies ago.
Kyle is confused— this Sarah Connor is anything but weak; she's a capable soldier who already knows about Skynet, Judgement Day and Kyle's mission to save her. She tells Kyle that everything changed when Pops, the older-looking Terminator, appeared. He came from the future to protect her from a T-1000 that was sent back to kill her in 1973. Once the T-1000 killed her parents, the T-800 became her surrogate father, training her to defeat Skynet.
The T-1000 catches up and follows them to their underground lair, where Sarah and Pops finally defeat it by dropping acid on it from the ceiling, which I have to admit was pretty cool.
Pops has built a smaller version of the time displacement unit in their hideout, and Sarah wants Kyle to travel with her to 1997 and destroy Skynet before it becomes operational. Due to his mysterious new memories, Kyle's convinced that the timeline has changed, and Skynet will now take over in 2017. After much arguing, he convinces Sarah to travel to that year. Pops stays behind in 1984 and will wait for them to reappear in 2017.
Sarah and Kyle go through the time machine and appear on a busy highway in San Francisco in 2017. They're immediately arrested and taken to a local hospital. There they learn about Genisys, Phil Collins' new band, er, I mean a new operating system everyone's talking about, due to come online in a few days. Kyle realizes that Genisys is really Skynet, and that they have to stop it.
Suddenly John Connor, posing as some sort of Homeland Security agent. He rescues Sarah and Kyle, taking them to the underground garage. There they're met by Pops, who looks a bit older after waiting thirty three years for their 2017 arrival. Suddenly he shoots John, who is revealed to be some kind of Terminator/Human hybrid. Double zoicks!
John reveals that when the T-5000 attacked him in 2029, it infected him with nano technology or something and turned him into a T-3000. Programs! Getcher programs! Can't tell yer Terminators apart without yer programs! John has also been sent back in time (man, there must have really been a line at that time machine) to ensure Skynet, er, I mean Genisys, becomes operational. Pops and John then have a major set piece battle. John is eventually incapacitated by the world's most powerful MRI machine. Oh, and Kyle finds out John Connor is his son, and blushes when he glances at Sarah. How John can possibly exist if his parents never have sex in this altered timeline is apparently none of our concern.
Meanwhile, John manages to escape and visits Cyberdyne, where he's working under the supervision of Miles Dyson and his son Danny, generating gasps of recognition from the audience. John's convinced them to not only create the Genisys program, but to also build a prototype time displacement unit (the same one we see in 2029?).
Pops takes Sarah and Kyle to a safe house he's set up and stocked over the years. They arm themselves, planning to destroy Cyberdyne. On the way there they're attacked by John, and are arrested yet again. During their interrogation, they're freed by O'Brien, the cop who met Kyle back in 1984 (remember him?). Sarah, Kyle and Pops hijack a police copter and flee. John follows closely behind in a second copter, setting up yet another action set piece.
Pops dives out of his copter (but not before uttering his signature "I'll be back line") and through the blades of John's copter (!), causing it to crash. John climbs from the wreckage and enters the Cyberdyne complex. Inside, Genisys is becoming sentient, appearing as a hologram of a child. It rapidly grows to resemble the T-5000 we saw infect John in 2029. Why it would resemble him, I have no idea. Genisys reduces the countdown from thirteen hours to fifteen minutes.
Sarah, Kyle and Pops also enter Cyberdyne and begin planting bombs inside. John tries to stop them. Pops grapples with John yet again, eventually pushing him into the time displacement unit. Since nothing metallic can survive the time travel process, it begins tearing them both apart. Pops is flung into some liquid metal alloy pool, and John is ripped apart.
Sarah and Kyle detonate the bombs, destroying Cyberdyne, Genisis and whatever the hell else they were trying to do. Pops reveals he survived, and because he was immersed in the metal alloy, he's now become a T-1000. Um... cool, I guess.
Later the three travel to young Kyle Reese's home. Older Kyle violates several laws of physics by warning his younger self about Genisys, which seems like shutting the barn door after the horse has already escaped, but whatever. Sarah and Kyle become a couple, with a grimacing Pops looking on.
Of course in the mid-credits scene, we see Genisys somehow survived an explosion that could have destroyed a small island.
• An observation: none of the four main actors are from America. Arnold Schwarzenegger is Austrian of course. Emilia Clarke is British, and both Jason Clarke and Jai Courtney are from Australia.
• This film stomps all over the continuity, completely wiping out a good part of The Terminator, and all of the second, third and fourth films. I have mixed feelings about that. I loved the first two films, and didn't mind the third. Deleting those is a bad thing. I absolutely hated Terminator Salvation though, so anything that wipes it out is OK in my book.
• I enjoyed the beginning of the movie, in which the Resistance finds the time displacement unit and sends Kyle Reese back in time. We've been hearing about this event since 1984, so it was nice to finally see it happen.
• Kyle Reese goes back in time to 1984, where we see many recreations of scenes from the first film. Specifically the arrival of the Terminator, and Kyle fleeing the police and stealing clothing from a department store.
They did a very good job with most of these scenes, even going so far as to match the camera angles. So why'd they have to recreate them? Naturally they'd have to recreate the Kyle Reese footage, since this film features a different actor, but why couldn't they have reused the original scenes of Arnold? Because a rival studio currently owns the rights to The Terminator, that's why. Stupid corporate lawyers.
• After the Terminator arrives in LA, he demands the clothing of a group of 1984 punks. The CGI Young Arnold used here is a vast improvement over the one seen in Terminator Salvation.
It's relatively easy to create a CGI dinosaur or Gollum, because the audience has no frame of reference for such creatures and will more easily accept them. It's much, much harder to create a convincing CGI version of a real person like Arnold though, because we all know how he looks and acts.
One possible reason this Young Arnold is more successful— supposedly they used a body double and superimposed a CGI head over the actor. Hey, whatever works.
Note though that once again he gets his skin burned off as soon as possible. Those CGI Arnold shots ain't cheap!
• So why does the "Pops" Terminator look decades older than his mechanical kin? Sarah explains it by saying the T-800s are covered with human skin and it ages over the years, just like ours. Hence Pops' older appearance. Eh... I'm having a hard time buying that.
I can accept that the Terminators are covered in human skin in order to pass as one of us. I just figured that after a week or two the skin would die and begin to rot away. It wouldn't matter though, because by that time the Terminator would have killed its target and would self-destruct or go back to the future or whatever they do when their mission ends.
If the skin can actually age though, that opens up a huge can of worms. Real skin would need a blood supply, a heart to pump it, a circulatory system, lungs to supply oxygen, and on and on. Real skin would also likely need nutrients, so you'd need some kind of digestive system as well (and the Terminator would need to eat). It seems unlikely that all that could be sandwiched between a Terminator's skin and robotic exoskeleton.
Not to mention the fact that when huge chunks of Pops' skin is torn away, he says it'll take years for it to regrow. Um... real skin doesn't work that way and couldn't possibly grow enough to cover an entire robotic arm. The only way any of this could work is if he's covered in some sort of synthetic skin-like substance. Whether such a material would age or not, I leave to the reader to decide.
• There are several things that seemingly must happen in every Terminator movie.
At one point a Terminator endoskeleton has to step on and crush a human skull on a future battlefield.
Someone must utter the line, "Come with me if you want to live."
A T-800 model must say, "I'll be back."
Someone has to say some form of, "The future is not written. There's no fate but what we make for ourselves."
If there's a T-800 in the movie, it must get riddled with bullets and have half the skin on its face torn away at some point.
• I was glad to see the T-1000 pop up in this film. For my money that's the all-time best Terminator model, and the one that's yet to be topped. Sadly this new "nanotech" Terminator just didn't do anything for me.
• Jason Clarke is now the fifth actor to play John Connor (in the films, that is). The previous ones were Edward Furlong and Michael Edwards (Terminator 2: Judgement Day), Nick Stahl (Terminator 3: Rise Of The Machines) and Christian Bale (Terminator Salvation).
• The reveal that John Connor is now a Terminator might have been more surprising if it hadn't been shown on the goddamned movie poster.