The story of a university student who leads a protest against an Asian security conference in Canberra which has been organised by his father the Australian Defence Minister. His life and his demonstration become disrupted.
| Actor | Role |
|---|---|
| JJoe JamesJoe Slater | Joe Slater |
| IIrene InescortMarion Slater | Marion Slater |
 Gerard MaguireSteven Slater | Steven Slater |
| WWendy LinghamSara Wainwright | Sara Wainwright |
 Kenneth TsangThao Kimalayo | Thao Kimalayo |
 Michael LongHugh Prentiss | Hugh Prentiss |
 Harold HopkinsMalcolm | Malcolm |
| KKerry DwyerRobin | Robin |
 Slim DeGreyAlexander Gurney | Alexander Gurney |
| SStewart GinnSupt. Ackland | Supt. Ackland |
| EElizabeth HallBeth | Beth |
| JJohn WarwickFrank Jamieson | Frank Jamieson |
 Ken GoodletInspector Graham | Inspector Graham |
 Redmond PhillipsSir David Crawford | Sir David Crawford |
| AAlexander CannHenry Hoffman | Henry Hoffman |
 Alistair DuncanTed Packard | Ted Packard |
 Noel FerrierGovernor General | Governor General |
| PPaul KaroCharles East | Charles East |
| JJon StephensCommunist Student | Communist Student |