A great plot could be that the wolf OC discovers a hidden valley that is untouched by the ice age's worst effects. However, there is a threat lurking in the valley, like a prehistoric monster. The wolf has to decide whether to keep this discovery a secret to protect its pack or seek help from other animals to defeat the threat.
One idea could be a story about a human from the Ice Age who discovers a hidden cave filled with ancient markings that lead to a secret power. Another could be a love story between two humans from different tribes during the Ice Age. Or perhaps a story of a human's journey to find a rare herb that can cure a deadly disease spreading in his tribe.
One idea could be a crossover with 'The Lion King'. The Ice Age characters could end up in the Pride Lands. Sid might make friends with Timon and Pumbaa, while Manny and Diego have to deal with the lions. Another could be a crossover with 'Finding Nemo'. The Ice Age gang could somehow find themselves in the ocean, trying to help Marlin find Nemo. It would be a really wacky and fun adventure.
One plot idea could be that the Pokemon have to adapt to the extreme cold of the Ice Age. For example, Pikachu might discover a new electric - based attack that is more effective in cold temperatures. Another idea is that some Ice - type Pokemon become the leaders during this time, guiding other types to find food and shelter. Maybe a group of trainers are also frozen in time and their Pokemon have to figure out how to thaw them out.
One idea could be to explore the backstory of Scrat and his never - ending quest for the acorn in more detail. Maybe show his early days and how he first discovered the acorn. Another idea is to create a fanfiction where the animals have to deal with a new type of natural disaster in the Ice Age world, something different from what we've seen in the movies. A third idea could be to write about a friendship that develops between two unlikely animals during the Ice Age.
One idea could be that the reader is a lost traveler who stumbles upon the ice age group. They have unique skills, like being able to predict the weather accurately, which helps the group on their journey. Another could be that the reader is a healer from a far - off land and has to use their special herbal knowledge to cure a sick member of the group. Maybe the reader is an artist and uses their art to communicate with the prehistoric animals in ways the others can't.
Another interesting idea is a wolf oc that discovers a hidden magic within the forest. This magic gives it the power to transform into a human - like form at will. The wolf oc then has to navigate between the wolf world and the human world, trying to keep its secret while also using its new form to help its pack in ways it couldn't before, like getting medicine from a human village to heal a sick pup.
One idea could be an OC who is a new Fable arriving in Fabletown. They have a mysterious past that is somehow connected to the main events in the game. For example, an OC who was a former ally of Bigby's in an old war but lost their memory. This could lead to a lot of drama as they start to remember bits and pieces and it affects their relationship with the other characters.
Maybe an OC who is a rogue with a mysterious past. They have a personal vendetta against a powerful Templar who has gone rogue and joined the enemy. The Inquisition becomes their means to get close to this Templar and exact revenge. Their skills in stealth and thievery could help the Inquisition in various covert operations.
One idea could be that Diego and Shira are transformed into humans by some magical force in the Ice Age world. They then have to learn how to live as humans while still retaining some of their animal instincts. For example, they might be really good at hunting in the wild as humans because of their past as saber - toothed tigers.
One idea could be a story where the ice age animals discover a magical lemon grove that has the power to bring warmth and new life to their frozen world. They then have to protect it from a group of jealous saber - toothed tigers.