Once upon a time, there was a little puppy named Max. Max loved to play outside, but he was very curious. One day, while exploring the neighborhood, Max got lost. He was scared and alone. He didn't know how to find his way home.
A kind old lady found Max wandering the streets. She took him home and gave him food and water. Max was so grateful. The old lady called the local animal shelter to see if anyone had reported a lost puppy. Luckily, Max's owner had called the shelter earlier that day. The old lady returned Max to his happy family.
What is the main idea of the story?