Sonny, son of Matt Hammond, the Chief Ranger of Waratah National Park, investigates with their family friend, Clancy.

Additional location shooting was done at Mallacoota in Victoria, some 470 km south of the fictional Waratah National Park (Ku-ring-gai Chase) and in Sydney.

[4] The Age called it "quite a pleasant adventure for the younger set" but Lee Robinson "slow paces the indoor talk which is too formal and deliberate for a telly-raised generation.

In fact, some snipping with the scissors would do wonders here, even if it meant sacrificing the "A" feature length the producers aimed for.

[3] John McCallum later claimed they: Got the money back on the film but we thought it would be a bigger success in the cinema.