Seventh-graders Agatha Wong and Orville Wright, who has Asperger's syndrome, try to prove that the prank they organized did not cause the fire that burned down their rival school's field house.

When Agatha and Orville go to visit Nana Wong, they find her gone. Agatha thinks her granny has been kidnapped, but the police are no help. The rejected detectives then uncover photos of a strange man among Nana's negatives. Could he be the kidnapper?

When one of their classmates goes missing during the seventh-grade camping trip, Orville and Agatha set out find him.

When his mother is accused of stealing jewelry at a charity dinner, Orville and Agatha team up to find the real thief—and their prime suspect is a famous soap opera actor.