Well, a plot might be centered around a misunderstanding. Say, Batman is framed for a crime he didn't commit and Robin, in his haste to uphold justice, believes the evidence against Batman. So, they engage in a battle. Or perhaps there's a power struggle within the Bat - family. Robin feels that he's being held back by Batman and wants more independence, which leads to a conflict. There could also be a situation where a powerful magical artifact affects Robin's mind, making him see Batman as an enemy.
One idea could be that Robin discovers a dark secret about Batman's past that makes him question their relationship, leading to a tense confrontation. For example, if Robin finds out that Batman once made a deal with a villain that had far - reaching consequences. Another plot could involve a new villain manipulating Robin into believing Batman is a threat to Gotham, causing them to fight. Maybe the villain uses mind - control technology.
One idea could be to have Batman and Robin face a villain who has the power to manipulate time. They would have to figure out how to stop the villain from changing history. Another could be that Robin gets kidnapped by a new, never - before - seen criminal and Batman has to use all his detective skills to find him. Maybe a third idea is that a powerful alien lands in Gotham and Batman and Robin have to team up with other heroes to deal with it.
Well, you could have a story where the Bat - family faces a crisis that makes them question their purpose. Robin might start to doubt if he should continue in this life. The family then has to work together to reaffirm their values. It could also be interesting to see a story where an old enemy returns, but this time targets the emotional weaknesses within the Bat - family.
In some 'batman fights robin fanfiction', there might be an external factor like an ancient curse that affects Robin. He becomes aggressive and unpredictable, forcing Batman to fight him. This could also be related to a prophecy that Robin is supposed to bring chaos, and Batman is trying to prevent it. Batman would be conflicted as he doesn't want to harm Robin but also needs to stop the potential danger.
One idea could be Batman teaching Baby Robin the basics of detective work. For example, showing him how to analyze crime scenes for clues. Another could be a story where they face a villain who specifically targets Robin because he's young and inexperienced. A third idea might be a heartwarming tale of Batman protecting Robin during a city - wide disaster.
In a fanfiction, Robin could be injured in a trap set by an old enemy of Batman. This enemy specifically targeted Robin to get back at Batman. Batman, upon finding Robin injured, is consumed with guilt and anger. He goes on a full - scale investigation to find the enemy. Meanwhile, Robin is in a critical condition and Alfred has to use all his medical knowledge to keep Robin alive. The story could focus on Batman's internal struggle between his need for revenge and his responsibility to Robin, and how he overcomes this to save both Robin and Gotham.
One idea could be a story where Robin has to take on Batman's role temporarily when Batman is injured. He has to face a powerful villain all on his own, using the skills Batman taught him in a new and creative way.
One idea could be that Batman suspects Superwoman of being controlled by some unknown force. So, he starts to investigate her in secret. Superwoman, on the other hand, notices Batman's strange behavior and thinks he's up to no good. This leads to a series of confrontations between them.
A great plot could involve a race against time. A powerful new super - weapon is about to be unleashed in Gotham and New York simultaneously. Spiderman and Batman have to put aside their differences and work together to stop it. Along the way, they learn from each other's fighting styles and detective skills.
In a fanfiction, perhaps a powerful tech mogul has created a dangerous new form of artificial intelligence that threatens both Detroit (Robocop's city) and Gotham. Robocop and Batman cross paths while investigating the same lead. Robocop is intrigued by Batman's ability to operate without the high - tech enhancements he has. Batman, on the other hand, is interested in Robocop's in - built weaponry and combat capabilities. They combine their resources and fight the AI - controlled robots and henchmen.
One idea could be that Robin gets trapped in an alternate dimension where the villains are in control and Batman has to figure out a way to bring him back. Another could be a story where Batman is injured and Robin has to take on a major villain alone, learning to trust his own instincts more. Maybe a plot where they encounter a new, powerful ally who turns out to have a hidden agenda that threatens Gotham.