While shopping in the mall, Shirley has her backpack full of tools stolen by a pair of diminutive thieves. Determined to get her gear back, she traces the pair to an abandoned house and learns that an old boy is using children to steal for him. In order to break up the gang without causing the children harm, Shirley decides to go infiltrate the gang and gains admittance by stealing a police detective's personal car.
—David Bassler