露路朵和汉斯是动物管理员的孩子。他们从书中看到,在野生动物乐园中,动物们可以自由自在地生活,仿佛生活在自己的家园中一样,而自己家动物园中的动物却天天囚禁在笼子中,闷闷不乐的,还总受到游人的戏弄,他们觉得很伤心。有一天,小猴子半夜里“越狱”游玩,看到了被露朵遗失在园中的书。所有的动物都被书中的图片打动了,它们决定偷走笼门钥匙,来一次大逃亡。 Lulu Duo and Hans are animal manager children. They read from the book that animals can freely live in the wildlife park as if they were living in their own homeland while the animals in their home zoo are imprisoned every day in the cage, Tease of tourists, they feel very sad. One day, the little monkey in the middle of the night “escape ” play, saw the book was exposed in the park by the dew. All the animals were touched by the pictures in the book, they decided to steal the key to a big escape.