For centuries, a secret society of highly trained ninjas have been going out into their communities spreading kindness. Now, they have asked Brian, a freckled blonde haired 8-year-old to become a part of their secret society. Brian recruits Anna and Sam to join his team to carry out random acts of kindness in their school and community . . . without getting caught. The three Kindness Ninjas think of creative ideas that leave their entire school baffled as to who this mysterious "Kindness Ninja" is. As their challenges get more complex, they must think creative solutions to the problems they encounter . . . without getting noticed.