Edward, who meets his sister after school every day and returns home with her, cannot find her sister one day due to the crowd in the school garden and gets on the wrong bus. While his family awaits him at home with curiosity and concern, Edward finds himself in a place where he has never been before. Remembering the advice he had received from his family until that day, he immediately seeks help from a police officer. Returning home with the help of the police officer, Edward and his family waiting for him at home become very happy… A story which teaches children how to protect themselves from the dangers of daily life.