Shore Road has a bunch of auto thefts outside Bayport, home territory of the Hardy Boys, Frank and Joe. They find out that one of their friends, Jack Dodd and his father, have been accused of the thefts. This bothers the lads because they feel certain there has been a big mistake and they intend to do something about it. As a result of their intentions and investigation the Hardy Boys wind up helping in capture of the actual car thieves who had framed and kidnapped their friends. It's exciting listening as they work hard to aid the Dodds, father and son.