Maybe Virgil's injury affects his ability to perform his normal duties in future missions. This could lead to some self - doubt and a struggle to regain his confidence. The other characters would then have to support him both physically and emotionally, like Scott giving him pep talks and helping with his physical therapy.
One common theme could be the other characters' reactions to Virgil being hurt. For example, how his brothers might step up to support him or take on his responsibilities. Another theme might be Virgil's own struggle to recover and get back to his duties.
His family would be extremely worried. Scott, as the eldest, would likely take charge immediately. He'd be focused on getting Virgil the best medical care possible and coordinating with the rest of the team to ensure his safety.
One idea could be that Virgil is kidnapped by an old enemy of the Tracy family who wants to use him as bait to get to International Rescue's secrets. Another could be that he's abducted by a group who mistake him for someone else with valuable knowledge. Maybe a mad scientist kidnaps him to force him to help with a dangerous experiment.
You can try looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. There are often many different Thunderbirds fanfictions on these platforms, and you can search specifically for ones involving Virgil getting hurt.
The motive could be ransom. The kidnappers might know that the Tracy family is wealthy and figure they can get a large sum of money for Virgil's safe return.
Family support is also a big theme. His brothers play a crucial role in his recovery. They are always there to help him through the tough times, whether it's physically or emotionally.
One great 'thunderbirds are go scott hurt fanfiction' might be 'Scott's Trial'. It focuses on Scott facing a difficult situation and his journey through it. The author does a great job of portraying his pain and the way he overcomes it within the Thunderbirds universe.
Perhaps Sakura's injury makes her realize she has some hidden strength within her. She could start to have visions or gain new abilities while she's recovering from the stabbing. This could then lead to a whole new arc in the fanfiction where she has to learn to control these new powers.
Well, one possible plot development could be that the kidnappers demand a ransom from Batman. Batman then has to race against time to find Robin without alerting the media or causing panic in Gotham. Another development might be that Robin manages to leave some hidden clues for Batman to find while being held captive. Maybe he uses his martial arts skills to briefly overpower one of the kidnappers and mark a symbol on the wall that only Batman would understand.
Well, one possibility is that Merlin's friends, like Arthur, might search desperately for a cure. They could go on a dangerous quest to find a rare herb or consult a powerful sorcerer who might know how to save him. Another could be that Merlin, while poisoned, has strange visions or dreams that give him clues about his true destiny or the future of Camelot.