A hot gray stone dragged 11-year-old geography fan Lu Yuan and young painter Su Xiaoman into the living map of China.
The mountains and rivers stretch out their lines on the sketchbook, and the plateau lakes appear with the light and shadow of the stones.
Lu Yuan's geologist father disappeared inexplicably, leaving only one guide: follow the guidance of the stone and come to me.
The two followed the clues and embarked on a journey: chasing Changfeng in the Huitengxile Grassland, going deep into the rainforest to encounter wild elephants, and walking across the vast Gobi Desert to look up at the stars.
Every time a mountain and river is unlocked, new clues emerge from the cracks in the strange rocks. But under the golden lines, there is a huge secret that far exceeds the geographical secrets.
An adventure to find his father across the Chinese territory officially begins.
Only when they traveled through mountains and rivers did they understand: To understand the mountains and rivers of the motherland is to understand the road ahead under their own feet.
Intention: Use the footsteps of a young man to measure the mountains and rivers of China, and let the temperature of geography grow into the bones and blood. The earth is the classroom, walking is the growth, understand the motherland, and understand yourself.