The story is about a robotic dog named Digit. Digit, the robotic dog, helps to stop bullying at the Zipper Elementary School by rolling down the hallways in the school, monitoring the children. Digit is a special dog because he teaches children not to bully each other in school. Digit carries a red toolbox kit that teaches children about positive behavior, role models, rules and discipline, being kind and helpful to each other, and he teaches children how to deal with problems about bullying in school. Digit teaches children to be friendly, to share, and to say please and thank you. But most of all, he teaches them to have a positive outlook on life. Digit's red toolbox kit also contains special rewards for those children who are well behaved in and out of school. Digit says, "Bullying hurts! It hurts us all. Stop bullying now!"