Frank and Joe Hardy are assigned to back up Lindsay Rider, a performative competition stunt woman who is actually an A.T.A.C. agent, as a saboteur attempts to infiltrate the Miss Teen Stunt Americana competition.
Someone is trying to sabotage the charity project Nancy Drew is working on with famous mystery writer Hazel Perrault, and Nancy is determined to get to the bottom of the mystery before the project--and the big fund-raising gala at the end of it--is ruined.
Nancy joins an Elizabethan troupe as a lady to the queen's court. There are performances and feasts, but the true drama unfolds when Nancy learns that she, the queen, and the entire festival have been targeted for sabotage.
When Frank and Joe arrive to test-drive the prototype of a world-class sports car, they discover that someone has tampered with the car. It becomes a death trap.