Maybe the dragon - themed Ranger turns out to be related to the main villain in some way. It could be that the villain has been manipulating the Ranger's dragon powers all along, and the eagle - themed Ranger has to help the dragon Ranger break free from this control. This would completely change the dynamics of the team and the direction of the story.
A really unexpected plot twist could be that the so - called 'enemies' that the dragon and eagle Rangers are fighting are actually trying to protect the Power Rangers world from a greater threat. The Rangers discover this when they accidentally stumble upon a secret prophecy or an ancient relic that reveals the truth. This would make the Rangers question their whole mission and have to decide whether to team up with their former enemies or continue on their original path.
I'm not super familiar with that specific 'the dragon and the eagle power rangers fanfic', but generally, a Power Rangers fanfic like this might involve unique storylines with the dragon and eagle themes. Maybe the Rangers could have new powers related to these animals, like the dragon Ranger having fire - based attacks and the eagle Ranger having super - speed flight or something.
Another plot twist could be that the powers of the Dino Thunder Rangers and the ninja abilities in Naruto are somehow related in a way that no one expected. Maybe the origin of ninjutsu was actually influenced by the same energy source that gives the Rangers their powers. This discovery could change the way both groups view their own powers and could lead to new alliances or conflicts within the fanfiction.
A plot twist could be that the main villain in the fanfiction is actually a character from one universe who has been corrupted by the power of the other. For example, a Naruto character who becomes evil after getting a hold of some Ninja Steel power. Or vice versa, a Power Ranger who is influenced by the dark chakra in the Naruto world.
One popular plot twist could be the unexpected alliance between a Dino Charge Ranger and a villain from another series in the crossover. Maybe the villain has some hidden motive that makes the alliance seem beneficial at first but then turns out to be a trap.
One interesting plot twist could be that the Power Rangers' powers are somehow transferred to the villains. This would completely change the dynamic of the fight. Another could be that the Rangers are sent to an alternate dimension where the rules of the Infinity War are different. Maybe they have to team up with their former enemies just to survive.
The Rangers themselves are the core. But in this lemon fanfic, there could be a character who is a lemon - spirit. This spirit could be either a helpful guide or a tricky entity that misleads the Rangers. And of course, there could be some ordinary citizens in the Dino Charge world who are affected by the 'lemon' element in the story. For example, a group of kids who find a lemon - scented crystal that is related to the Rangers' new adventure.
One possible plot could be that Adam faces a betrayal from a fellow Power Ranger. This would shatter his trust and lead to him crying as he feels so let down. Maybe he discovers that someone he thought was a true friend has been secretly working against the team.
One possible plot twist could be that Issei's new Dragon God form has a hidden curse or a side - effect that he has to deal with. Maybe it slowly corrupts his mind or drains his life force.
Another possibility is that there's a crossover of characters' identities. A Power Ranger could gain Beetleborg powers and vice versa. This would lead to some interesting character development as they learn to control new powers and deal with the changes in their fighting styles and relationships with their respective teams.
One possible plot could be a crossover where the Bakugan and Power Rangers have to team up to fight a common enemy. Maybe an ancient evil has the ability to disrupt both the Bakugan battles and the Power Rangers' world, so they combine their unique powers and skills to defeat it.