Isaac Itkin can't get away from his thoughts. As a lonely twelve-year-old kid with Obsessive Compulsive Disorder (OCD), everything from studying to looking in the mirror becomes a battle between him and a swarm of unhelpful thoughts.
Smiley Bone, Fone Bone, and their Rat Creature pal, Bartleby, take a group of young scouts to a legendary landmark that the Bone cousins found when they were kids.