When Cody, his mom, and his friend Maria arrive in the Florida Keys to house-sit for their friend Sally West, they are warned about a kidnapper at large in the neighborhood who tried to abduct young Angela Gomez.
During his summer in Hawaii, Kimo repeatedly visits a secret and forbidden beach, ignoring several frightening warning signs. Who is threatening him and why?
When his neighbor Mrs. Sugarman reports seeing a seven-foot tall monster resembling Big Foot in New York City's Central Park, Cody Smith and his friend Maria Romero set out to investigate the sighting.
When someone breaks into Coach Taylor's office and steals the money for the new basketball uniforms but leaves a set of footprints behind, its up to Kevin Anderson to solve the crime and expose the thief.
Alice and her brother Louie meet Johnny Boyd when they spend summer vacation with their grandparents on the farm. Louie thinks he saw a ghost and the three children are out to solve the mystery.
Cody is involved in another mystery. When the cat keeps vanishing and a mysterious stranger is hanging around, Cody needs to do a little investigating to solve the case.
Cody and his friend Maria find themselves in the middle of several mysteries as they search for a missing emerald necklace.