The movie starts with the
opening credits and a voiceover from some unknown world's Amanda Mallory complaining about a citywide blackout and calling for her son.
NIGHTTIME
An amateur VHS recording fades into view, on it a young adult, Quinn "VHS" Mallory of the same unknown world tapes a diary entry documenting the results of his latest scientific experiment in his basement. The room is littered in sci-fi tech. The room is also dark from the blackout- but Quinn is too excited to care. His mom calls for him again from the background, he finishes his sentence in a whisper, before cutting off the recording.
-Fade to black-
-Title Card: SLIDERS-
THE NEXT MORNING
We finally get to see WORLD PRIME, the camera pans across this Quinn Mallory's bedroom- a messy room with odd bits and bobs, like a baseball, posters.. but hints of intelligence tucked away like a physics book left open on the floor, opened electronics on the desk.
The pan ends at the bed where Quinn Mallory sleeps in the same clothes he wore yesterday.. The radio turns on, and Quinn wakes up.
Heading downstairs, the young adult has a discussion with his mother over breakfast, something that Quinn eats quickly as he has things to do. Over this discussion we learn that Quinn's father had passed away some years ago from a car accident. Quinn's messy attitude is brought up by his mother, who notes that he slept in his clothes again, and the two joke about how the only rooms not clean are the two rooms that Quinn uses; his bedroom, and the basement- where "it would take years to get rid of that junk."
Cut to the basement. An opened metal ball lays on a desk, it's a probe- like the Voyager Golden Records, detailing how to read its contents. A pile of home recording tapes lay in a pile inside the ball, where they came from, and another pile by the tv. They're dated by month and year. Whoever made these did so a good few years back. Nothing else can be seen.
Quinn has been watching the tapes in the order that they were recorded. He plays in the next one and sits down, watching it with great interest. On the recording, "VHS" Mallory excitedly admits that while he failed in creating an antigravity device, he stumbled upon something else. Pushing a few buttons, a tear in reality appears within a glass capsule. The tape cuts to a few days later, "VHS" Mallory sends a probe through. He hypothesises that this tear is a gateway into another reality and wants to visit.
It's not outright stated yet, but this isn't the Mallory from WORLD PRIME. Keen watchers may figure this out, but if not it is addressed later.
WORLD PRIME's Quinn Mallory is torn away from the recording once his mother reminds him that he has lectures today.
We see an old picture of the WORLD PRIME Mallory Family; Quinn, His Mother, and his Father.
Quinn leaves by his front gate, it squeaks.
LATER THAT DAY
Quinn parks his car outside of a park, the only place where he doesn't have to pay. He cuts through the park to his lessons, here Quinn passes a homeless man preaching about the virtues of Communism. We see a statue in the park too, one of some American, famous for doing something American. Probably a horrible person but that was forgotten over time so the public could idolise his capitalist virtues.
Professor Maximilian Arturo is giving a lecture on some smart-sounding physics mumbo jumbo. Dissatisfied with the lack of work ethic from his students, some who don't care for the class and others that don't understand what they're being taught. He asks a question to the class but no one can or wants to answer. This frustrates him. Arturo believes he is wasted in this institution.
Quinn Mallory is absentmindedly doodling the outline of the portal in his notebook instead of listening. Arturo criticises him for not listening. Arturo turns his back on the class to write the answer to his own question on the blackboard. While he isn't looking, Quinn's seat neighbour, hippie and friend, Conrad Bennish leans over and whispers the answer to Quinn before Aruto has completed his explanation. Quinn chuckles. Conrad is the smartest in the class, but hates Arturo with a passion, and refuses to properly engage with the class. Arturo thinks Conrad is an idiot because he hasn't seen what he is capable of.
Quinn, Conrad Bennish and other friends leave class. Excluding Conrad the others make fun of the Professor, but Conrad begrudgingly admits that the Professor should deserve more than he has, that he read his work and he should be a Nobel Laureate. This wasn't in the syllabus, Conrad calls it some light reading on the side.
AFTER SCHOOL
We cut to DOPPLER Computer Superstore, where Quinn and a crush of his, Wade Welles work as salespeople.
Wade, being a lot savvier than their boss, promotes to a customer that they return in a few weeks when they have a new product in store, rather than buying a worse option now. Seeing Quinn enter she quickly ends her discussion and heads to him. This is their routine to make the hours go faster at work, they banter and make small talk and never really do anything significant besides making plans to do things outside of work. They do that here, Wade snagged two season baseball tickets for them both, they made plans a bit ago to see tonight's game. He wants to stay home and see more of the tapes, but Quinn still promises to pick her up and enjoy himself.
Wade is shown to be more savvy than their boss Michael Hurley, when he comes over to criticise Quinn for being late, and Wade for losing a deal. Both salespeople defend each other. Quinn was at a lecture, and Wade's customers will return in a few days and spend more money than they would have if they bought something now.
AFTER WORK
Quinn returns home, the front gate squeaks.
Quinn heads down to the basement and powers it on. Panning shot of a mad scientist lair that looks an awful lot like what we saw on the VHS tapes, only more rudimentary and cobbled together.
Since we haven't properly seen the basement before, it isn't obvious if this is the same day, it could be weeks in the future since the last time scene, maybe months, maybe hours. This should give the viewer the sense that maybe Quinn's been working on this room for a while.
Quinn looks at the wall of blackboards. Over time he's written down all he could find and understand from the VHS recordings, from design schematics for the bulky glass capsule machine, to equations.
He's having trouble with one particular equation, even with the help from the tapes he's been lost for months. Without it, he doesn't know the proper energy output and frequency needed to stabilise the gateway. But that's something that'll be explained later on to the viewer.
We see him make a few mistakes with numbers, realise what he did, and changes them. Quinn is impatient and because of that, with big calculations, he's prone to make a few mistakes when it's done in his head.
He watches another tape recording, here "VHS" Mallory is discussing how anything sent through doesn't return, so he has developed a timing-returning device. When it is sent through with the object, it leaves an anchor in our world and can force the transported object back into its original universe when the timer ends. This is shown to be working in a demonstration with a basketball.
Irritated that he hasn't figured out the equation after so long, he decides to do it tomorrow with the tried and true method of putting random numbers into the machine and seeing what works the best.
Before this he films his own tape recording, explaining what he is about to do, why he has to do it and if it goes wrong he also makes a personal message out to his mom.
THE NEXT DAY
It goes wrong.
Instead of a basketball, WORLD PRIME Quinn uses a football with the timer-returning device. The timer is a big, bulky brick. He sets the timer for 3 hours. A gateway appears and pulls the football through but it destabilises. A ripple spreads from the mouth across the basement and catches Quinn in it. Screen whites out intermittently with visuals of inside the wormhole.
Fading back in we see Quinn right where we left him, the football and timer are still in the glass capsule. Finally using his head, he thinks that's enough messing without the proper equations. From the stairs, we hear his Mom reminding him of his baseball match with Wade later on.
Dejected he drives to the match. The front gate doesn't squeak but he doesn't notice. Over the radio, the misogynistic radio DJ seems to be talking only about politics. He doesn't even mention women besides a passing remark about Marlynin Monroe's noteworthy contributions to politics.. That's a bit odd... It's a green light at a crossroads, Quinn swerves to dodge a bunch of reckless drivers that pull out in front of him. Stupid drivers, don't they know that green means stop? Wait. Hold on a sec.
The DJ brings up stranger and stranger things as Quinn keeps on driving. He stops at a red light. There's honking behind him, Quinn finally uses his rearview mirror as drivers shout at him for stopping... Those aren't his eyes in the mirror.. Oh god, who's face is that? That isn't Quinn Mallory. This isn't his body.
The mirror reflects a different actor, and as Quinn freaks out we cut back to him, only he's been replaced by this other actor.
This isn't the body Quinn Mallory that we know, this is the Quinn Mallory of another world, that looks different, looks older.
He speeds back home, freaking out but trying to remember that green means stop, red means go.
He notices the gate doesn't squeak this time. He checks again, still, it doesn't squeak. His mother and gardener leave the house and Quinn runs up to meet them. They're heading off for their date?!? They're older, his mother is pregnant. Jake? But he's their gardener for crying out loud!
A new voice calls his name from behind. He turns and sees a woman. She came to pick him up. It's Wade Welles. A different face, a different actor, older like Quinn too. She's come to pick him up for the baseball game.
Quinn is still freaking out, but we cut to the basement where we see the football and the timer. It reaches zero and begins to beep. We cut back to outside, Quinn has an out-of-body experience where we see from his point of view. A portal appears behind him, and he is ripped out of this duplicate Quinn's body and through the gateway while the others watch on in surprise.
He's back in his world now, in his real body. He's in his bedroom now. He runs to the basement. The football and timer appear in the chamber too. He sees the timer, he sees how it ran out and gets excited. He realises he was in another world.
He runs out excitedly, greeting his mum, and his not-stepdad gardener. Happy they aren't together. The gate squeaks as he leaves for his next class, he missed the last one while he was on the other earth.
AT CLASS
He gets to class and apologises for being late. He's cut off by the Professor. Arturo refuses to be in the same room as him, and leaves.
Quinn's friends talk about what happened, thinking Quinn remembers. He had mocked the Professor, calling him a pompous windbag, a useless old man. When the hell did he do that?
AT WORK
At work, Wade asks why Quinn showed up. He was fired? Hell, he insulted Hurley to his face, right in front of customers.. Quinn says that wasn't him and Wade jokingly says "I guess that kiss meant nothing now?". Mistakingly thinking that he kissed Hurley, Quinn almost gags, but when he finds out that it was Wade he kissed.. He can't believe it. I mean,
they're just buds. It'd be weird, right? No way. Wade walks off, she's not interested in going to that baseball game tonight. Maybe some other time.
AT HOME
We see Quinn's Mother something around the house, on television we see a commercial for Ross J. Kelly, the TV Attorney. The commercial is stupid, and Kelly promises that he will
"FIGHT. FOR. YOU" 🫵
Heading back down to his basement Quinn tries to figure out what the hell happened. His best bet? The energy field messed with his brain, causing him to halucina- He looks at the blackboard. Someone finished the equation he's been stuck on.
A man walks out from the shadows and Quinn turns around. It's not a stranger, we've seen this face before. Quinn was this face once. It's the older Quinn Mallory whose body was taken over. Quinn "Alternate" Mallory had solved the equation ages ago.
"Alternate" Mallory lays out an exposition dump in a conversation with Prime Quinn, the gists are.
0. Alternate Mallory also has the VHS tapes, it's finally explained to the audience that Prime Quinn received them after they fell out of a portal. There is another Quinn somewhere in the multiverse trying to teach other earths how to slide by sharing his discoveries.
1. Alternate Mallory has been sliding for a while now,
2. He coins the term slider, meaning to slide between worlds- but claims that it's more than likely Prime Quinn would have named it the same thing given enough time.
3. Time moves at the same pace in all universes, but can start at different times, this means the date or year on alternate earths can be different- people could be older or younger. This isn't why Alternate Mallory is older though.
4. Doppelgangers can also be genetically different, they can look or act differently, like with Quinn and Wade in the Alternate World. Or can be born earlier or later than their counterparts in other worlds.
5. The gateway was unstable, which causes unforeseen consequences. It didn't have enough power to transport a whole person, instead only took Prime Quinn's mind and pushed it into the nearest, best-matching body on the alternate world, as long as your alternate self is in range, it'll usually be that.
6. A gateway can only absorb what it envelops entirely, so it won't rip out a chunk of a wall, and can only take a car if it fits within the portal walls. Otherwise, it passes through harmlessly.
7. To make space in the body for the extra mind, Alternate Mallory was kicked out, sent through the portal and placed inside Prime Quinn's body. He's the one that's been going around causing trouble on the Prime World.
8. Other unforeseen consequences of an unstable gateway could be; being sent into a random person's body, the portal expanding to swallow more than you want it to, being trapped between realities and unable to touch either, your body is stored within the gateway while your mind is projected into the nearest resident, etc. There's a long list of consequences but Alternate Mallory only knows one or two.
9. Alternate Mallory doesn't have the technology to pick where a slide leads, yet.
10. With his world's future technology, Alternate Mallory has miniaturised the Slider technology, making it pocket-sized instead of taking up an entire room.
11. Alternate Mallory can reopen a recently closed portal ONLY ONCE before it gets dangerous, that's how he followed Prime Quinn back to his home universe in his own body.
12. Opening a portal creates a ripple in the world you slide into, when created these ripples do nothing for a short while, before thinning the walls between dimensions for a minute or so. Too many ripples risks tearing a permanent hole between two dimensions, destroying both.
"Alternate" Mallory talks about some of the worlds he's been to, the biggest highlight is an earth with no pollution, no crime, no hate, and everyone is happy. No one was afraid. "Alternate" Mallory didn't have the REOPEN technology back then and is sliding to rediscover that earth so he can settle there with his family. He's obsessed with finding it. That's why he slides.
This explains why Alternate Mallory still lives at home with his Mom, he's disregarded his life there to rediscover this perfect world.
Either way, Alternate Mallory has set his timer to a good few weeks from now. He came here to improve Prime Quinn's sliding technology in the hopes that with more sliders, the chance one of them finds a world with better-sliding technology than his increases. He hopes this better tech could be used to control where to slide, and that he could go back to that perfect world.
That seems to be some kind of canon event for Slider Quinn Mallorys, they all just copy from each other and other people. Alternate Mallory wants to find other people with better tech, Both Quinns copied the sliders from VHS Mallory- and who knows if he really came up with the idea himself.
Quinn Mallory isn't as smart as he thinks he is.
THE NEXT FEW WEEKS
Over the next few weeks, the Alternate Mallory lives in the basement since there's nothing there but Prime Quinn's tech so his mom doesn't check down there.
Over a montage, we see the two working on the technology, and we learn bits and pieces of this Alternate Mallory, like how he is dating Wade. That explains a few things.
Still, it's frustrating for Alternate Mallory to use the outdated technology from this world- trying to make workarounds to properly miniaturise the Slider technology and merge it with the timer-returner device. In the end, two bulky, but portable sliders are made. The first is a prototype. It is the size of a 1970s portable computer. Slow, heavy and clunky.
The second slider is in the shell of a
Casio CQ-1 pocket calculator, with tech babble added to the sides, like a mechanical timer on the back, and a light on the side that the portal 'shoots' out of.
Even with Alternate Mallory's help, these soldiers are nothing like his own, which is sleek and carries enough charge for months of slides. The batteries on Prime Earth are nowhere near as good, and every few slides Quinn will need to recharge it somehow. It charges virtually instantly it but take a ridiculous amount of power, usually draining an entire city block.
While not happy, Alternate Mallory is satisfied with his work by the time he needs to return home. He wishes the younger, Prime Quinn luck- but warns him that because of the rudimentary technology, he should not slide before the timer ends, or who knows what might happen.
Before he leaves, the two take a commemorative photo together, which Quinn will keep in his wallet for its sentimental, and groundbreaking value.
Alternate Mallory Slides back to his home dimension.
LATER
Wade and Professor Arturo knock on Quinn's front door and are invited inside by his mother. Quinn invited them both so he could take them on a slide, but neither of them know it yet.
Alternate Mallory suggested Prime Quinn invite Wade on the next slide, he has an attachment to the woman in his own world, he realises this Quinn has feelings for this Wade too, and wants to help push it along. Wade thinks they're going to tonight's baseball game.
Inviting Professor Arturo wasn't Alternate Mallory's idea. He hates the old mate with a passion and shoots Prime Quinn down any time the boy mentions his name- but Prime Quinn isn't the entirely same person, he still trusts the professor and wants to make up for what his Alternate did in his body all those weeks ago. So he invited him too under the pretence of apologising.
ELSEWHERE
We cut to a music manager's office, dancing to a recording of Rembrant "Cryingman" Brown on vinyl player. The sleeve of the vinyl is in focus and we see what the Cryingman looks like. We cut to the office bathroom, a slightly older Rembrandt Brown shouts out to turn it off, he doesn't need to hear his old stuff just before his comeback.
This is a down-on-his-luck artist, he used to be famous but that was a long time ago. Now? He thinks has a chance to get back on top after all these years. His manager shoots him down, he's singing the national anthem at a baseball game, not singing for the queen. But it's still something to the old Cryingman.
THE BASEMENT
Wade and Arturo arrive in the basement. Arturo sees the solved equation on the board, in fact, he sees all the theoretical slider technology on the walls- back when Quinn was only working with the VHS tapes.
After everything Quinn's been through, that seems like child's play now. He shows them the second slider, it beeps and lights flicker.
ELSEWHERE
Singing, Rembrandt gets in his car and heads off to his basketball game.
THE BASEMENT
Arturo is amazed at what he's been told about sliding. He doesn't really believe it.
Quinn opens up a portal.
The Professor shuts up.
ELSEWHERE
Rembrandt Brown, still singing, is still driving along.
THE BASEMENT
Arturo wants to study the portal, but the two young adults egg him on to follow them through the portal. They set the timer for a few hours and walk through.
Here we see the first of many problems this slider has. Alternate Mallory only did the calculations for TWO sliders; Prime Quinn and Prime Wade. But now there's Arturo. Not wanting a repeat of last time, Quinn does some mental maths to estimate how much power he'd need for the additional person. Like before with the equation, he gets some numbers wrong. He puts in too much power. Thanks to Alternate Mallory's work on it, the slider won't open an unstable gateway. With Alternate Mallory's solved equation the sider calculates the proper frequency and other such scientific things of the portal- so all that happens is the portal is a lot bigger than Quinn intended.
It extends outside of the basement, outside of the house, and pulls in Rembrant Brown who's passing by on the road.