Rambunctious girls, Freckle Face and Blondie, dream of becoming detectives. They open a private investigation company to start solving mysteries so they’ll be experts by the time they’re adults. When their friend Katy disappears suspiciously and her mother is frantic police search for the girl. They should stay out of it, but Freckles and Blondie follow leads and reveal new clues. Sharing discoveries with authorities, they’re told to stop looking. Timing is critical and could mean the difference between life and death to Katy.