Thirteen-year-old Ned and his depressed mother leave Australia for a rest in America, but he is soon on the trail of international smugglers of exotic animals, with help from his Internet friends.
Jennie, having survived an airplane crash in which her grandmother, the pilot, was injured, finds a commune where she asks for help, but she soon begins to suspect that the commune is a front for illegal activities.
Thirteen-year-old George, spending the summer of 1955 working in his grandmother's store in Obadiah, Alabama, becomes involved with helping his African-American friends, Esther and Bennett, solve the mystery of their father's disappearance.
When she begins receiving bizarre threatening messages from someone who seems to know her every move, teenage Ashley, after seeking help from the neighborhood tough guy, comes to realize that she alone can end the stalker's reign of terror.
Wishbone, Joe, and their friends are helping Gladys Glendower fix up the old Moonlight Drive-in but the job gets tougher when mysterious fires threaten to destroy the drive-in.