When Dick and Dot arrive back in Norfolk at the start of a new holiday, they discover that the 'Death and Glory' boys are PC Tedder's prime suspects in an outbreak of criminal activity.

PC Tedder's suspicions grow when the 'Death and Glory' boys appear to have come into money. Dick, Dot and Tom seem to be the only people in Norfolk who believe the boys to be innocent.

Stolen property is found aboard the 'Death and Glory' boys' boat and the Big Six desperately need to find clues to unmask the real villains.

PC Tedder decides to arrest the 'Death and Glory' boys, but can Dick's clever idea obtain the vital evidence in time?