Little Miss Pinkerton

The gang arrive at the local department store to look over murder clues that the store has placed in a display window. Whoever solves the mystery wins $100. Unfortunately, the crowd is too big for them to see anything, so the janitor allows them to enter the store on Sunday when it's closed. While there, a couple of burglars arrive to crack open the store safe, and end up killing the janitor. The gang hides, but are soon discovered by the bad guys, who ""take them for a ride."" Janet, however, is not discovered, so she tries to convince the cops that the boys have been kidnapped. Unsuccessful, she recruits the neighborhood kids.