The action takes place 20 thousand years ago. To avoid the approaching cold due to the onset of the ice age, animals migrate south. However, some of them still decide to stay - the lonely, gloomy mammoth Manfred, as well as the reckless sloth Sid.
By chance, this couple comes across a human cub. They decide to return it to the people and go on a journey. Along the way, they meet a saber-toothed cunning tiger. And now this fun company will have fun adventures!