Hidden for centuries, a secret group of ninja masters has been on a special mission-not to fight, but to spread kindness wherever they go. Now, they've chosen Brian, an 8-year-old with wild blond hair and a heart full of courage, to join their ranks. With his best friends Anna and Sam, Brian forms a secret ninja squad dedicated to doing random acts of kindness all around their school and community-without ever being caught. From surprise notes to daring good deeds, their creative missions leave everyone wondering... who are the mysterious Kindness Ninjas? But as their missions grow trickier, Brian and his friends must outsmart every challenge that stands in their way. Can they keep their identity a secret-and keep the kindness mission alive?