原始人咕噜一家六口在老爸咕噜的庇护下生活。每天抢夺鸵鸟蛋为食,躲避野兽的追击,每晚听老爸叙述同一个故事,在山洞里过着一成不变的生活。大女儿伊妹是一个和老爸性格截然相反的充满好奇心的女孩,她不满足一辈子留在这个小山洞里,一心想要追逐山洞外面的新奇世界。突如其来的世界末日让他们不得不离开居住了“一辈子”的山洞,展现在他们眼前的是一个崭新绚丽却又充满危险的新世界。在游牧部落男孩阿盖的带领下,他们展开了一场闹腾而又惊险的旅程…… The original grunt family of six lives under the care of dad Gollum. Every day to snatch ostrich eggs for food, to avoid the chase of the beast, every night to listen to the father narrated the same story, live in a cave immutable life. The eldest daughter, Emei, is a curious girl with a diametrically opposite personality from Dad. She is not satisfied with staying in this small cave all her life and is bent on chasing the novelty outside the cave. The sudden end of the world has forced them to leave the cave where they lived “for a lifetime” and show them a brand new and gorgeous but dangerous new world. Led by a nomadic tribal boy led by Agaete, they started a naughty and thrilling journey ...