'The story itself is set partly on the Sydney waterfront and partly in South Australia, and the period is the early nine teen-hundreds.
'It is about a young ne'er-do-well who passes himself off as the long-lost son of an elderly and sentimental station-owner.
'The situation is complicated by the fact the young man and his accomplice are fugitives from justice, and by the young man's falling in love with the squatter's daughter–his supposed sister.'
Source:
'Film Previews: "Kangaroo" Is Here', Sydney Morning Herald, 19 June 1952, p.14.