此次看中国·兰州行计划的主题是人·家·国，所以本片讲述了一个关于家族的故事，当然，这个家族也是非常特殊非常具有代表性的，它就是众所周知的白老七家族，这个家族为什么众所周知呢？是因为他们的牛肉面被兰州人民所熟知所追捧所热爱。筋道的面条，美味的油泼辣子以及香气扑鼻的面汤背后蕴藏着什么秘密？不起眼的小店为何会有摩肩接踵的规模？以及时间流逝中为何白老七被人津津乐道？一个个的疑问在片中被一一解开。街头巷尾传唱的白老七油泼辣子的传承及制作，蓬灰的原理及作用，牛肉面背后的故事一一被记录，被呈现。我们给你的，是关于牛肉面的故事，是关于白老七家族的故事，更是关于兰州这座城的一些被人们所忽视的历史。

The theme for 2015 Looking China is “Individual, Family, Nation” so this documentary is about a family. But this family is very special and is a representative of China. This family, Bai Lao qi, is well-known to all. But why does everybody know them? It’s because their beef noodles are well-loved by the people in Lanzhou. What is the secret of the springy noodles, tasty chilli and frangrant soup? What draws people to this hidden gem? Why is it that over the years people are still talking about it? All of these questions will be answered as you watch this documentary. People are still debating on what the recipie of the secret chilli is. The uses of Peng Hui, the story behind the beef noodles are all captured and revealed. What we give you is an insight into the story of the beef noodles and the Bai Lao Qi family. More than that, we want to show the often overlooked history of Lanzhou.