Another interesting crossover could be with Doctor Strange. Maybe Agent Carter stumbles upon some ancient magical artifacts during one of her missions. This leads to her getting involved in the world of magic, and she has to team up with Doctor Strange to keep these artifacts from falling into the wrong hands.
A crossover with the X - Men could also be cool. Imagine Agent Carter dealing with mutants in the 1940s or 50s. She might initially be suspicious of them, but then realize they can be allies in the fight against common enemies, like Hydra or other anti - mutant groups.
One idea could be a crossover with the Avengers. Agent Carter could be brought into the modern day through some time - travel mishap and have to work with the Avengers to stop a new threat. Maybe she'd use her old - school spy skills and charm to get the team in line.
One idea could be an Agent 47 crossover with the Hitman universe's other assassins. They could team up or compete in a high - stakes mission. Another is a crossover with a detective character from a crime - solving series. The detective could be on Agent 47's trail, leading to a cat - and - mouse chase. Or a crossover with a science - fiction character where Agent 47 has to deal with otherworldly threats in an unfamiliar setting.
Another idea is that Agent Carter is somehow brought to the modern era where Iron Man exists. She could be a bit of a fish out of water, but her old - school skills and no - nonsense attitude could help Tony Stark in a crisis situation. Maybe she has a different perspective on some of the modern technology that he's created and offers some unique solutions.
Another plot could involve Peggy accidentally traveling to an alternate timeline. In this timeline, SHIELD has become an evil organization. She has to team up with alternate versions of her friends and allies to set things right. This would be a great opportunity to explore different character personalities and relationships in a new context, as well as have some intense fight scenes and strategic planning.
One idea could be a crossover with another kids' show like 'Dora the Explorer'. Special Agent Oso could team up with Dora to solve a mystery that involves both their worlds, like a missing map piece that leads to a special place. They could use Oso's gadgets and Dora's bilingual skills to overcome obstacles.
One interesting story could be about Agent Carter teaming up with the Avengers in a time - travel adventure. Maybe she goes to the future and has to adapt to the new technology while also using her old - school spy skills to help the team out.
One plot idea could be that Agent Carter is on a mission to uncover a conspiracy within SHIELD. She gets shot during a confrontation but manages to leave behind clues for her colleagues. Her friends then race against time to not only save her but also expose the truth. Another idea is that she is protecting a valuable asset when she's shot. The fanfic could focus on her determination to fulfill her duty even in her injured state. And a third plot could be about her getting shot by a double - agent within her own team, leading to a story of trust - building and revenge as she recovers and hunts down the traitor.
One idea could be a crossover where Naruto somehow gets transported to the world of John Carter. Maybe he teams up with John Carter to fight against a common enemy in Barsoom. They could combine their unique fighting styles, like Naruto's ninjutsu and John Carter's swordsmanship.
First, decide which universe you want to crossover with. For example, if it's with the Guardians of the Galaxy, think about how Agent Carter would fit into that space - themed, far - out world. Then, create a plot that ties the two worlds together. It could start with a shared threat or an object that links them.
One idea could be that Carter and Zia discover a magical item that is linked to their future baby. It has the power to protect the unborn child from all kinds of magical threats. Another could be that they have to go on a quest to find a special place where their baby will be born safely, facing many challenges along the way.
One interesting idea could be a crossover with "Moana". Elsa's ice powers and Moana's connection to the ocean could create a really cool dynamic. Maybe Elsa accidentally freezes part of Moana's ocean and they have to work together to fix it. Another could be with "Tangled". Rapunzel's long hair and her adventurous spirit combined with Elsa and Anna's journey in Frozen 2 would be exciting. Rapunzel could use her hair to help them climb mountains or cross chasms. A third idea is a crossover with "Beauty and the Beast". Belle's love for books and knowledge could help Elsa understand more about her powers and the history of magic in the Frozen world.