Patti Anderson and Ian Forbes are in love, but the boy is dominated by his wealthy father, a stud farmer who owns the property which Patti's father manages. Patti cannot understand Ian's attitude to marriage, for unknown to her, he believes his father would never condone a marriage with his employee's daughter. Then Patti disappears, and she is found brutally assaulted and close to death. The Matlock police organise a search for the culprit, but when all else fails an Aboriginal tracker, Jack Winter, is called in. Jack tracks the culprit down, but before he can reveal his identity, Jack has to make an agonising decision.