A possible plot is that the AHS swim team is having a series of 'accidents' during their practices. Percy, who is passing through town, hears about it and decides to investigate. He discovers that an old enemy from his demigod days has cursed the pool. He then has to convince the swim team that the cause of their problems is not normal and get them to trust him enough to help him break the curse.
I think one of the AHS swim team members who is really skeptical at first about Percy's claims of being a demigod could be an interesting focus. As they start to see evidence of the supernatural world, their journey from disbelief to belief and their growth in understanding would be great to explore. They could also develop a strong friendship with Percy along the way.
Percy Jackson, as the swim team captain, was a force to be reckoned with. He'd stand at the edge of the pool, his sea - green eyes focused. His team members looked up to him. During practice, he'd show off his amazing speed in the water, leaving a trail of bubbles. He also had a unique way of motivating his team, sharing tales of his underwater adventures. The team became more than just a group of swimmers; they were like a family under Percy's leadership.
Well, there's a fanfiction where Percy has to train a new member of the swim team who has a fear of water. He uses his own experiences and powers to help the newbie overcome it. It's a really heartwarming story. And then there's one that's more action - packed, where the swim team gets caught up in a battle against some mythical creatures while they're at a swim meet. The way they use their swimming skills to evade and fight is really cool.
One idea could be a quest where Percy and Artemis have to team up to rescue a group of demigods captured by a powerful new enemy. Maybe a Titan who has found a way to drain the powers of young demigods. Percy's skills in water manipulation and combat, combined with Artemis's archery and her connection to the moon, would make for an exciting adventure as they face various challenges along the way.
Well, perhaps Percy would show off his amazing swimming skills, being a son of Poseidon. He might make the team win every competition easily, like a superhuman in the pool.
Well, a plot could involve Percy Jackson stumbling upon a hidden cave where cavemen are in a sort of stasis. When they wake up, they mistake Percy for a god because of his powers. Percy then has to teach them about the modern world while also learning about their primitive yet magical ways of life. Maybe there are ancient artifacts in the cave that are related to the Greek gods and Percy has to protect them from being misused.
One plot idea could be that Percy has to face Arachne in a battle of wits rather than just a physical fight. Maybe Arachne weaves illusions within her webs that Percy has to break through to reach her. Another could be a scenario where Arachne tries to use Percy to get revenge on the gods by tricking him into stealing an important artifact from Olympus. A third idea is that Percy and Arachne form an unlikely alliance when a greater threat emerges that endangers both of their existences.
A plot could involve Percy accidentally stumbling into Artemis' territory. At first, Artemis is angry but then realizes Percy has information about a threat to her hunters. So they start an adventure to stop this threat. During the journey, they learn more about each other's worlds and develop a mutual respect. Or maybe there's a spell that makes Artemis lose her powers temporarily and Percy has to protect her while she regains them.
A possible plot is Percy being sent on a mission by the gods to study a strange phenomenon in the ocean that is affecting both the mortal and demigod worlds. He uses his scientific skills, which he has developed over time, to analyze the situation. He might encounter sea monsters that are acting oddly due to this phenomenon and has to figure out how to stop it. Or perhaps Percy is recruited by a secret scientific organization within the demigod world that is trying to find a way to bridge the gap between the magic of the gods and modern - day mortal science. He could bring a unique perspective with his experiences as a demigod.
A really interesting plot could be that Cupid, for some reason, decides to make Percy the ultimate symbol of love in the demigod world. Percy is then thrust into a role he doesn't understand, having to deal with love - sick demigods coming to him for advice. Meanwhile, he has his own relationship problems, like his feelings for Annabeth being complicated by this new status. He has to figure out how to handle Cupid's meddling and restore some normalcy to the love lives of those around him.