My Grandmother the P.I.

Seventeen-year-old Mandy Winthrop has been raised by her grandmother, who runs a private detective business. During the summer, she takes a summer job as her grandmother's secretary and gets herself and her friends, Rita, who's keen on cosmetology, and Charlie, a computer wiz, into trouble. When Mandy stumbles upon a child kidnapping scheme, she meets a mysterious man and puts her grandmother at risk. In an explosive ending, Mandy learns the truth about her parents.