Australian servicemen march in London on Australia Day + Duke of Gloucester and family.
Title reads: "Australia's Big Day".
London and Northamptonshire.
Various shots of Australian airmen and soldiers marching along the Strand to celebrate Australia Day at St. Martin's in the Field church. The military parade is lead by a brass band.
Various shots of Duke of Gloucester (Prince Henry) with Duchess, eldest son, Prince William and a small Terrier dog. The couple and their young son are sitting in grounds of Barnwell Castle, Northamptonshire. Relaxed, informal atmosphere. The Duke wears army uniform. According to narrator the Duke has just become new governor-general of Australia.