They could be in a post - apocalyptic world. Jessie has some special skills like being able to find water sources and Tony is good at building shelters. Together, they try to survive and build a new community, facing many challenges along the way like fighting off raiders and dealing with scarce resources.
One idea could be that Jessie and Tony are partners in a detective agency. They get a case that involves a mystery related to Jessie's past. Along the way, they face various challenges and their friendship evolves into something more. Another plot could be that they are all in a post - apocalyptic world and have to work together to survive, with Jessie having some unique skills that help the group. A third plot might be that they are part of a theater troupe, and there are love triangles and rivalries within the group as they strive for success on the stage.
One idea could be that Jessie and James discover a lemon grove that has magical properties. They initially plan to steal the lemons for Team Rocket but end up having a change of heart when they see how the local farmers rely on the grove. Another could be a lemon - themed cooking competition where they have to team up with their Pokémon to create the best lemon - based dish.
One plot idea could be Jessie and James trying to steal a rare and powerful Pokemon that has a unique bond with a young trainer. The trainer is determined to protect their Pokemon, leading to a series of comical and action - packed encounters between them.
One idea could be that they face challenges in preparing for the baby while also dealing with their own personal growth. Maybe they struggle to balance their work or other responsibilities with the impending arrival of the child.
One idea could be that the characters from Descendants end up in the world of Jessie by some magical mishap. Mal could use her magic to help Jessie deal with some of the difficult kids she babysits, like when they get into trouble at school. Another plot could be that the kids from Jessie visit the Isle of the Lost out of curiosity and try to bring some positive change there. Maybe they start a music club or something similar to engage the villain kids in a more positive activity.
One idea could be Ash and Jessie teaming up temporarily to save a rare and endangered Pokemon species. They put aside their differences when they realize the importance of this Pokemon to the ecosystem.
Maybe a fanfiction where Jessie and James discover a rare and powerful Pokemon that has the ability to grant wishes. But they have to go through a series of challenges set by other mysterious Pokemon to earn the right to make a wish. This could lead to a lot of character development as they face their own greed and learn about true friendship along the way.
A plot could involve that during a chaotic encounter in a mysterious forest, Ash and Jessie's bodies are swapped. At first, they both struggle to adapt. Ash, in Jessie's body, has to deal with her two bumbling Team Rocket partners. He tries to keep them from causing too much trouble while also trying to figure out how to get back to his own body. Jessie, in Ash's body, is confused by his Pokémon's training routines. She decides to use her own unorthodox methods which the Pokémon find strange at first, but eventually, they all start to work together in a new and interesting way to deal with the situation.
A really interesting plot would be if there was a prophecy in the Percy Jackson world that involved a 'stranger from a land of machines and modernity' which is Jessie. The two have to figure out how Jessie fits into this prophecy. Along the way, they face challenges like dealing with Jessie's lack of knowledge about Greek mythology at first and Percy trying to understand the strange technology Jessie brings with her.
A cool plot could be that Thor and Tony have a bit of a rivalry at first. Thor thinks Tony is too full of himself with his high - tech gadgets, and Tony thinks Thor is just a brute with a hammer. But then they are forced to work together when an alien threat arrives that is immune to Tony's tech and Thor's brute force alone. As they get to know each other better, they learn to combine their strengths and defeat the enemy. They might even become good friends in the end.