The prospect of the Racing Club Carnival dance has the Heelers in a frenzy to find partners.There is little to celebrate when an armed robbery of the race takings leaves a security guard seriously wounded. The only clues, a Mudlark's Grand Final Pin is found at the scene of the crime. Could one of Jack's fellow football team be responsible? The Heelers call in football coach, Ian Waldron, to find out which Mudlarks's players have pins but the carnival atmosphere fades for all when Ian tells them that his son Matt, Jack's good friend, is dying from a brain tumour. Ian has spent his company's fortune trying trying to find a cure for Matt in Brazil and must close his factory. There is little chance Matt will survive to see his wife deliver their first child. Jack finds it difficult to confirm the alibis of his football buddies for the time of the robbery and is puzzled by the behaviour of his mate Scott who has been acting strangely since Matt returned from Brazil. Jack is certain som