"A resourceful hunter-gatherer discovers a time-travel portal in the prehistoric era, leading to a series of adventures and encounters with ancient civilizations, while facing off against a jealous rival, ultimately securing their place as a respected leader and inadvertently sending the rival to a future era."
Protagonist: A resourceful hunter-gatherer who stumbles upon a time-travel portal; Antagonist: A jealous rival from the same tribe who is envious of the protagonist's discovery and tries to sabotage their efforts to use the portal.
The protagonist discovers the time-travel portal and begins to experiment with its capabilities, leading to a series of adventures and encounters with prehistoric creatures and ancient civilizations.
In the end, the protagonist successfully uses the time-travel portal to escape the antagonist and explore different time periods, ultimately finding a way to bring back valuable knowledge and resources to their own tribe, securing their place as a respected leader and leaving the jealous rival behind.
Twist: The protagonist's use of the time-travel portal inadvertently leads to the rival being transported to a future era, where they must learn to adapt and survive in a world completely unfamiliar to them.