1932. A peaceful holiday on the Norfolk Broads becomes an adventure when Dick and Dot meet up with Mrs Barrable and Tom Dudgeon.

The Hullabaloos search for Tom while Dick and Dot plan with Mrs Barrable to help him escape.

Tom is still being hotly pursued by the Hullabaloos. The Teasel with Dick, Dot and Mrs Barrable aboard is menaced by a new foe - wreckers.

Grounded on a mudbank in fog, lom sits helpless as the Hullabaloos pound towards him. Mrs Barrable is powerless to help as the Teasel too is in trouble.