
A journalist sets out to report on a minor earthquake in the Australian outback, and finds that the tremor was a result of a small nuclear explosion - part of an extortion threat that has the government fearing nuclear blackmail. With the help of local reporters, and despite the harassment of the security agencies, he sets out to avert the crisis.

Barry Newman
Barney Duncan

Bill Kerr
Willliam Ashby

Trisha Noble
Gillian Boles

Alwyn Kurts
Jack McGinty

John Ewart
Sam O'Bannon

Bruce Spence
Towie
Willie Fennell
Old Alf

Vincent Ball
Prime Minister
Erin Pearce
Ernie Kramer

Noel Trevarthen
Kimball
Jeff Ashby
Deighton

Kevin Miles
Thurber
Carole Skinner
Sybil
Brian Blain
Dr. Durant

Sean Scully
Army Officer
Barry Donnelly
Sgt. Bolas
Bettina Welch
Mrs. Ashby

Michael Duffield
Air Vice Marshall

Rob Steele
ASIO Agent

Brian Wenzel
ASIO Agent
Arch Nicholson
Walter Halsey Davis
Released