In this fanfiction, Peter might be injured during a physical education class. He could be trying to show off a new move in a sport like basketball. He jumps too high and lands awkwardly, twisting his ankle. His classmates would be worried and some might rush to get the school nurse while others stay with him, and this incident could change his attitude towards being over - confident in the future.
Maybe Peter was doing a science experiment in class and something went wrong, like a chemical explosion that injured him. The other students could be in shock and the teacher would have to quickly take action to get help.
One possible plot could be that Peter is injured during a superfamily mission. Maybe he's trying to protect a younger member of the superfamily. The other members then have to step up and take care of him while also dealing with the threat that injured him in the first place.
Well, it could be that Peter gets injured during a fight in class, perhaps with a bully. And his friends then have to deal with the situation while also trying to keep it from the teachers.
His classmates would probably be very concerned. Some might immediately run to get the teacher or the school nurse. Others might gather around Peter, asking if he was okay and trying to comfort him.
One reason could be his own clumsiness. Maybe Peter is always in a rush and not paying enough attention to his surroundings. For example, he could be running down the stairs while looking at his phone and trip, resulting in an injury.
Perhaps they call Peter in class because they've discovered some sort of conspiracy that involves the school or someone in it. Peter, being a friendly neighborhood Spider - Man, has a good sense of what's normal and what's not in his neighborhood which includes the school. They might need his help to investigate something strange going on within the school walls.
Perhaps Naruto is injured while on a solo mission to infiltrate an enemy stronghold. He gets caught and tortured, which leaves him severely injured. Sakura and the others then launch a rescue mission, and during the journey back, they face many challenges in keeping Naruto alive and treating his wounds.
He could be using his phone to track a villain's movements. Maybe he installed some special app on his phone that can detect unusual energy signatures. So while the teacher is droning on about history or math, Peter is secretly following the path of a super - villain who is on the loose in the city.
Peter might save his class in a more emotional or psychological way in this fanfiction. For instance, if there's a bully in the class causing distress among his classmates, Peter could stand up to the bully and give inspiring speeches to boost the morale of his classmates. He could create a sense of unity among them so that they can face any difficulties together, which in a way is also a form of'saving' the class.
In this fanfiction, Harley might be calling Peter in class to ask for help with a difficult assignment. Maybe Peter is really good at a certain subject and Harley is desperate for his assistance during class time.
One plot point could be that Peter's class is on a field trip and they get kidnapped by a group of villains who want to use them as hostages to lure Spider - Man out. Peter has to secretly save them without revealing his identity.