小亮历险记:万里长城 is a very touching story about a boy who met his Grandpa for the very first time. His Dad unexpectedly fell ill, and Xiao Liang had to spend his summer holiday in Beijing with Grandpa.The Great Wall of China (万里长城) is located in Beijing, where Xiao Liang's Grandpa resides. Learn a bit of Great Wall's history as you discover how the story unfolds...