It's a story about Miles Morales. He's a Spider - Man from his own universe. In this movie, he travels across different spider - verses. He meets various versions of Spider - Man and Spider - Woman. There are cool action scenes and a lot of character development as he tries to find his place among all these different spider - powered heroes.
One main plot point is Miles Morales' journey across the spider - verses. Another is the introduction of new Spider - Man characters from different universes. Also, there's the threat to the multiverse that Miles has to help stop.
In many aspects, 'Across the Spider-Verse' adheres to the comic book canon. However, there might be some creative liberties taken to make the story more cinematic and engaging for the audience while still respecting the core elements of the comics.
Another plot could focus on a young Gwen Stacy from a different universe who stumbles into the main Spider - Verse. She has to learn how to control her powers while also dealing with the fact that in some universes, her counterpart didn't survive. This would add an emotional depth to the story as she tries to find her place and make a difference.
A character with the power to manipulate time within the Spider - Verse could be really interesting. This character could accidentally disrupt the normal flow of time in different universes while trying to save their own universe from destruction. It would create a whole new set of challenges for Spider - Man and his allies as they try to restore order.