Modern hiking youth Lin Yue accidentally crosses over into the Ice Age, awakening the ability to understand animal language. Relying on modern survival knowledge, he unites partners such as polar bears, penguins, saber-toothed tigers, and mammoths, clears land to build camps, stores food, and resolves territorial conflicts. Advocating labor cooperation and respect for nature, humans and animals watch over and help each other to survive the harsh glacier, interpreting the positive core of unity, mutual assistance, and reverence for nature.