Ice Age: Brand new start

Twenty-thousand years ago, Earth is a wondrous, prehistoric world filled with great danger, not the least of which is the beginning of the Ice Age. To avoid a really bad frostbite, the planet's majestic creatures - and a few small, slothful ones - begin migrating south . The story revolves around 4 animals: a woolly mammoth, a saber-toothed tiger, a sloth and a 6 year old mountain weasel.
Before Manny meets his friends Sid and Diego, after his family were hunted down and he failing to protect his family, he meets a baby weasel, naming her after his wife, Y/N. he promise to do it right with Y/N and Protects her.
I do not own Ice age nor none of the characters.