The ice age on earth is finally coming to an end! In the face of the warmer weather day by day, the animals are jubilant. In the spring weather, there is a variety of food and a carefree life. Our three heroes in the first episode, Diego (saber-toothed tiger), Manny (mammoth) and Sid (sloth), sensed the crisis in an atmosphere of universal jubilation: as the earth warmed, the water level was slowly rising, and at this rate, the homes of the animals will soon be flooded. So, led by Diego, Manny and Sid, the animals began their journey to find a new home. On the way, there is not only a lot of laughter, but also a lot of suffering. Can animals finally overcome difficulties and find a whole new world?