Interested in everything, Lacey, who runs back and forth in the village, is crazy about John. Lacey is just a puppy and likes to depend on her mother's age. Under the same starry sky, John and Lacey are close together, and gradually grow into a well-known dog worthy of the name as the best partner of teenagers. But it didn't take long for the coal mine pit to suddenly run out of coal. Lacey and John were forced to separate for unexpected reasons (Lacey was sold). Since Lacey escaped, she started a hard journey of 1600 km to John's residence.