Tian would rather play on his Switch than study for school. So his strict father sends him, together with his younger sister, to their grandmother in the countryside, unaware that the majestic mountains of Sichuan hold an even greater distraction for the boy. On his forays through the dense bamboo forests, Tian discovers a baby panda that has been abandoned by its mother. The two become friends and experience a carefree and adventurous summer until Tian's parents come to visit and discover Tian's secret.