One idea could be that Roy is kidnapped by an old enemy seeking revenge for past deeds. The kidnapper might try to force Roy to reveal secrets about his superhero friends. Another could be that a powerful criminal organization kidnaps him to use his skills for their own evil purposes. For example, they could want him to create special weapons for them.
In some fanfictions, Roy could be kidnapped by a group of rogue scientists who want to study his enhanced abilities. His friends and allies then have to figure out where he is being held. Meanwhile, Roy tries to escape on his own from the high - tech prison the scientists have created for him, using his wits and his combat skills.
One possible plot twist could be that they were actually set up to be kidnapped by a former ally who has turned against them for some personal vendetta. Maybe this ally blames them for a mission gone wrong in the past and wants to make them suffer.
One plot idea could be Roy and Thea preparing for the arrival of their baby. They could be seen shopping for baby clothes and nursery furniture, arguing over cute or practical items. Another could be how their friends and family react to the news. Some might be overjoyed while others could be worried about how they'll handle parenthood at their age or in their situation. A third idea could be them facing some kind of danger that threatens their unborn child and how they fight to protect it.
A possible plot is that Shikamaru is kidnapped by a rival village that believes his strategic mind can give them an edge in an upcoming war. His kidnappers try to brainwash him into working for them. However, Shikamaru uses his wits to resist and also leaves subtle clues for his comrades to find him. His friends, on the other hand, must infiltrate the rival village without getting caught to rescue him.
One idea could be that MacGyver is kidnapped by a group who wants him to build a dangerous weapon for them. He has to use his wits and the limited resources in his captivity to not only escape but also prevent the weapon from being built. Another plot could involve MacGyver being kidnapped by a rival agency who wants to steal his secrets and tradecraft. He then has to outsmart them by creating diversions and makeshift tools within the confined space. A third idea is that he is kidnapped by someone seeking revenge for a past mission gone wrong, and he has to convince his captor of his innocence while finding a way to break free.
One idea could be that Legolas is kidnapped by an old enemy of the elves. This enemy might want to use Legolas as a bargaining chip to get some powerful elven artifact. Another plot could involve a powerful dark magic user who kidnaps Legolas to drain his life force which is believed to be very strong due to his elven heritage. A third option is that he is kidnapped by a group who mistakes him for someone else who has great value to them.
One plot idea could be that she is kidnapped by a group who wants to use her as a bargaining chip against the Survey Corps. Maybe they demand the release of their comrades in exchange for her safe return. Another could be that she is kidnapped by a mysterious figure who has a vendetta against her family and wants to extract information from her about her past. Or perhaps she is kidnapped by a cult that believes she has some special power and they want to use it for their own dark purposes.
Well, perhaps in the fanfiction, Edward is kidnapped by a secret organization that wants to use his knowledge of the military's alchemical operations. They might hold him captive in an underground lair, filled with strange alchemical contraptions. Or maybe he's kidnapped by a jealous alchemist who feels overshadowed by Edward's fame. This alchemist could try to steal Edward's research and take credit for his work. Also, it could be that an otherworldly being kidnaps him to learn about human alchemy.
In a fanfiction about Ginny Weasley being kidnapped, perhaps she's kidnapped by a jealous rival. This rival could be envious of Ginny's relationship with Harry or her popularity at Hogwarts. As Ginny is held captive, she could use her own wits and magical skills to try and escape, while her friends are on a desperate search for her, leading to a tense and exciting story full of twists and turns.
One idea could be that the kidnappers are from a rival tech company trying to steal Stark's latest inventions. They hold him hostage in an abandoned factory and he has to use his wits and some makeshift gadgets to escape. Another plot could involve a group of villains who want revenge on Stark for past defeats and they kidnap him to lure his superhero friends into a trap. A third idea is that a mysterious organization kidnaps him to force him to build a powerful weapon for their own evil purposes.
One plot idea could be that Twilight is kidnapped by a group of shadowy creatures who want to steal her magic for their own dark purposes. Her friends then embark on a quest to rescue her, facing various challenges along the way. Another could be that she's kidnapped by a jealous rival from another land who wants to prove their superiority. Twilight might have to use her wits and hidden powers to escape on her own while her friends are on their way.