The Last Chance Detectives is a series of Christian television movies, and later a radio drama series created by Robert Vernon and produced by Focus on the Family in the mid-1990s. The production of each video episode cost approximately one million USD. The series focused on four preteen "sleuths" who solve mysteries in their fictional desert town of Ambrosia, Arizona. When the radio shows were airing, Canyon Quest, a prequel book to the show, was released.