instead of trying to invest a time machine, doc instead tries to invent a way to give people the ability to time travel. his first test subjects in this experiment are spiders, of course >:)
now, marty knows not to touch those spiders. does he know what they're for? definitely not. but he does know that they're completely off limits. thats why when he accidentally breaks their enclosure and gets bitten by one, while doc is out, he doesn't say anything.
during this time, doc had also been inventing a device to help him with productivity in the lab, four controllable robot arms
the rest of what goes on follows pretty closely with the plot of the second spider man movie, i actually took notes on that whole movie once for this. doc doesnt actually learn that martys spider man until the end of the movie, after doc had been trying to kill him for however long. but once he breaks out of the arm's control (and DOESNT DIE!!), doc helps him out in his superheroing.
anyway, because of the extra special time spider juice, marty also has the ability to slightly control time (ie. stop it, slow it, speed it up). he only first figures this out during one of his fights with doc, only because he's right about to be killed. by the end of the movie he can still barely control it. doc helps him figure it out, though.
marty is very much Not Having A Good Time. the super powers part is cool and all, sure, but its also not. hes got no clue whats going on, he cant control his powers, his best friend/father figure/the only one who could fucking help him is trying to Kill him, his relationship is going all poopy because of all the lies he has to tell. its just not a good time. and of course when doc breaks free he feel INCREDIBLY guilty, and no matter what he does to help marty and keep him safe and apologize for almost killing him MULTIPLE time, doc has a very very hard time forgiving himself.
on the bright side though, after jenn learns marty is a freaking superhero and thats why he was lying, their relationship gets better. of course it still has the problems all superhero relationships have, but its still better.
i dont have much to say about the plot because its pretty much just spider man 2 so have a couple other fun facts:
- needles would probably be harry osborn, though I did just make that up so it can change
- george is dead. hes the uncle ben. rip
- marty is definitely able to time travel but wouldnt be able to unless under like. SUPER stressful situations. basically, bttf can still happen in this universe, just with some extra spider garnish
- if i were to write a fic about this id probably call it "See the Future Through the Haze" which is a lyric from the spider man turn off the dark musical
- originally, marty could only stop time for as long as he was holding his breath
the movie notes i made: (i hope my handwriting is readable lol)