Well, in such a fanfic, Harry might be subjected to various interrogations by Abstergo. They could be trying to extract some sort of special knowledge or power from him.
It's possible that in this fanfic, Abstergo has some ulterior motives for capturing Harry. Maybe they believe he has a connection to a powerful magical or historical artifact. So they hold him captive to force him to lead them to it. They could also be using him as a pawn in a larger scheme against his friends or allies. Harry, on the other hand, would likely be trying to resist their every move and find a way to send a message to his friends for rescue.
Obviously, Harry would be one of the main characters as he is the one being captured. And then there would probably be characters from Abstergo, though we don't know exactly who without more context of the fanfic.
Well, if Harry is captured by Voldemort in fanfiction, it could lead to some really dark and intense scenarios. Voldemort might torture Harry to get information about the resistance. Harry, on the other hand, could be secretly planning an escape while pretending to be broken. There could also be a rescue mission by his friends, which would be full of danger and drama.
In this fanfic, Katniss might face intense torture. The Capitol is known for its cruelty. They could use various methods to break her spirit, like starving her or subjecting her to mind - games. Maybe they'll try to use her as a tool to control the rebels, threatening to kill her if the rebellion doesn't stop.
In such a fanfic, Naruto might be subjected to various interrogations by Kumo. They could be interested in his Nine - Tails power. Maybe they would try to extract information about Konoha's secrets through him.
In such a fanfiction, Harry might be tortured for information about the Order of the Phoenix. Voldemort could try to turn Harry to the dark side, using threats against his friends.
In such a fanfiction scenario, Harry Potter might be forced to use his magic in new and unexpected ways to try to escape. Maybe Hydra would be interested in his magical abilities for their own evil purposes, like using his magic to power some sort of dark weapon.
In such a fanfic, Harry might be tortured for information about the Order of the Phoenix. Voldemort could try to turn Harry to the dark side, using his powerful magic to break Harry's will.
Well, he could be rescued by his friends. Maybe Raven uses her magic to track him down and then the team like Cyborg and Starfire fight off the captors.
Well, in a fanfic where these characters are captured, there could be a lot of intense situations. Maybe Aizen, being the crafty character he is, would try to manipulate the situation to his advantage. Ichigo, on the other hand, would probably be looking for a way to break free and fight back. And Irukia might be using his cool - headedness to assess the situation and come up with a plan. They could also be forced to work together against a common enemy in the fanfic, which would be an interesting dynamic considering their different personalities and powers.
In this fanfic, Naruto might be tortured for information about the Hidden Leaf. The Akatsuki are known for their ruthless ways, so they could use various jutsu to make him talk.