Left behind when the Agents leave Space City to defend a parallel world from Queen Misery and her Commissars, tiny fourth-grader Boo, who has just completed her training, has only her feline companion to help her protect their home world from devious enemies.Left behind when the Agents leave Space City to defend a parallel world from Queen Misery and her Commissars, fourth-grader Boo, who has just completed her training, has only her feline companion to help her protect their world from enemies.