In a post-apocalyptic world, a survivor from the past must navigate a new era after a time-travel device malfunctions, leading to a journey of survival, adaptation, and ultimately the discovery of their own role in preventing the apocalypse.
Protagonist: A survivor from the past who is struggling to adapt to the new world; Deuteragonist: A skilled engineer from the future who is essential in repairing and maintaining the time-travel device.
The time-travel device malfunctions, stranding the protagonist in a different era and forcing them to rely on their newfound skills and allies to survive and find a way back to the post-apocalyptic world.
The protagonist ultimately learns to embrace the new world and finds a way to use the time-travel device to bring hope and resources back to their post-apocalyptic world, leading to a new beginning for humanity.
Twist: The protagonist discovers that the post-apocalyptic world they came from is actually a result of their own actions in the past, and by embracing the new world and using the time-travel device, they have the power to prevent the apocalypse from ever happening.