Synopsis
The Hardy Boys become owners of the Chinese junk Hai Hau. They head to New York City and go spelunking to break up a gang of criminals.
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Cast
- Tim MathesonJoe Hardy
- Richard GatesFrank Hardy
- Jan-Michael VincentTony Prito (as Mike Vincent)
- Portia NelsonAunt Gertrude Hardy
- Ricky KelmanBiff Hooper
- Richard AndersonFenton Hardy
- Edward AndrewsDr Montrose
- James ShigetaGeorge Ti Ming
- Teri GarrSusie