- "Stuntmen always play with danger."
- — Tagline, from the front cover
Frank and Joe go undercover as apprentice stuntmen on a major movie. They've been asked to investigate a number of serious accidents that have delayed filming. Right from the first scene the action gets rough. Frank's stunt misfires, and the next one turns into a flaming disaster.
The Hardys are certain it's deliberate sabotage. But the young detectives find the real drama is off the set when they become involved in a bizarre plot to steal a fortune. Unfortunately, they get themselves arrested! The brothers must break out of jail fast -- or lose their only chance to be cleared of a million-dollar frame-up.