One possible plot twist could be that Oliver goes back in time and accidentally changes something that makes his friends turn into enemies in the present. For example, he might prevent an event that was crucial for the formation of their friendships. Another could be that he meets a younger version of himself and has to convince that version to make different choices without revealing too much about the future. It could also be interesting if he goes back to a time when his city was in a different state, like before the rise of a major villain, and he has to stop that villain from ever emerging in the first place.
Well, he could go back in time and find out that his family has a whole different history than he thought. Maybe there was a hidden power or secret organization in his family's past that he discovers. This could lead to a new mission for him in the present once he returns. Or perhaps when he travels back, he gets stuck in a time loop where he has to keep reliving the same day until he figures out how to break it and in the process, he learns something crucial about his future enemies. Also, he might go back and meet a love interest from his family's past, which could create a really complex situation when he comes back to his own time.
One possible plot twist could be Anakin going back in time and preventing his own fall to the dark side. He might use his knowledge of the future to avoid the events that led him to become Darth Vader. For example, he could avoid the temptation of Palpatine's offers. Another twist could be that his time - traveling disrupts the Force in unexpected ways, causing new alliances and enmities to form. Maybe he accidentally changes the course of other Jedi's lives, leading to a completely different galactic power structure.
One possible plot twist could be that Katniss goes back in time and prevents the Hunger Games from ever starting. Maybe she meets the people who first came up with the idea and manages to change their minds. Another could be that she goes back to a time before her father died and is able to save him, which would completely change her family's situation and her own personality development. A third plot twist might be that she goes back to a crucial moment in the Games and alters the outcome in a way that surprises everyone.
A typical plot device is the discovery of a time - key object. In Oliver goes back in time fanfiction, this object could be a magical amulet or an old - fashioned watch that allows him to travel through time. This gives a clear reason for his time - traveling. Another plot device is facing a villain from the past. Oliver may have to outwit a powerful historical villain who is causing chaos in that era. And cultural shock can be a plot device too. When Oliver arrives in the past, he has to adapt to the different customs, languages and social norms, which can lead to some humorous or tense situations.
Oliver can start by learning the language of the time. If he goes back to a different era, say the Middle Ages, understanding the local language would be crucial for communication. He could also study the social norms. For example, if he's in a very hierarchical society, knowing how to behave around different classes is important. Another way is to get used to the different living conditions. If there are no modern conveniences like electricity, he has to learn to do things the old - fashioned way.
Well, a really interesting plot twist might be that when Rick travels back in time, he discovers that time is actually a loop. So all his actions in the past were already pre - determined and he was just fulfilling his part in the loop. This could lead to a whole existential crisis for Rick as he realizes he may not have as much control as he thought. Or perhaps he goes back and finds out that an enemy from the future has already been manipulating events in the past to try and stop Rick from ever becoming the genius he is.
Well, a really interesting plot twist might be that when Merlin travels back in time, he discovers that the future he thought he knew was all wrong. Maybe the events that led to Arthur's rise and fall were actually set in motion by a time - traveling sorcerer from even further in the future. He could also find that the people he thought were his allies in the past were actually working against him all along, which would completely change his view of history and his role in it.
In 'Frozen Bonds', the plot twist is that the Snow Queen has been manipulating events all along not for evil, but to protect Emma from a greater threat that she is unaware of. This flips the typical villain - hero perception on its head and makes for a really unique and thought - provoking story.
A plot twist might be that Oliver's kidnapping was actually a self - sacrifice. He let himself be kidnapped to protect someone else, like a key witness or a loved one. In the fanfiction, his friends initially don't know this and are scrambling to save him, but as they dig deeper, they discover his real motive. This adds a whole new layer of complexity to the story.
One possible plot twist could be that when they go back in time, they accidentally change something that has a huge impact on their future relationships. For example, Naruto might unknowingly prevent Sasuke from leaving the village in the past, which could completely change how they interact in the present they return to. Another could be that they find out a hidden truth about their parents or the village's past that was covered up, like a secret alliance that their predecessors were involved in.
A really interesting plot twist could be that Steven goes back in time and discovers that the Diamonds had different motives than he originally thought. Maybe they were being influenced by some other force in the past, and by going back, he uncovers this mystery. Also, he could find out that some of the things he thought were his friends' ideas were actually planted by an outside source long ago. This would completely change his understanding of the relationships and history in the Steven Universe world.