剧情早知道史前人类克鲁德一家,这个6口之家的家庭成员包括爸爸、妈妈、3个孩子和奶奶,他们没有亲戚也没有串门一说。身为一家之主的老爸Grug一直告诉孩子们要待在洞穴里,不要试图去探寻外面的世界,不然的话就会有危险。然而Grug的女儿Eep对外面的世界充满了好奇,她不甘心就这样一辈子蜗居在洞穴里。敢想敢做的她为克鲁德一家打开了新世界的入口,在这个色彩斑斓充满珍禽异兽的世界里,一家人的冒险也就此开始了…… The plot has known a prehistoric human Cruy, a family of six family members, including father, mother, three children and grandmother, they have no relatives nor series. Grug, the head of the family, tells the children to stay in the cave, not to try to explore the outside world, otherwise it is dangerous. However, Grug’s daughter, Eep, was curious about the outside world, and she could not be reconciled for the rest of her life in the cave. Daring to dare she opened the door to a new world for the Krud family, and in this colorful world full of rare and exotic animals, the adventure of one’s family began.