Synopsis The Bobbsey Twins hope to expose some rather suspicious activities at the Silver Town Mint Center.
The Bobbsey Twins search to find the culprit who is sabotaging the floats for the famous Rose Parade in Pasadena, California.
The Bobbsey twins help the members of a Camp Fire club catch the culprits who stole their bicycles.
The Bobbsey twins search for a poodle that interrupted a ballet performance and then was stolen.
The mystery surrounding a dune buggy bought at the town dump deepens when the vehicle is stolen.
When the Bobbsey twins try to help a famous pianist who is on tour in America from his native country and who has been receiving threats against himself, the man's daughter is kidnapped.