Harry Wingate, a rugged adventurer, is hired by a gem collector to retrieve a priceless opal, known as "The Blue Lightning," from Lester McInally, a super-criminal with an army of killers operating in the Australian outback.
Sam Elliott
as Harry Wingate
Robert Culp
as Lester McInally
John Meillon
as Dr. William Giles
Rebecca Gilling
as Kate McQueen
Robert Coleby
as Ninian
Max Phipps
as Brutus Cathcart
Ralph Cotterill
as Words
Jack Davis
as Jahrgadu
Bob Barrett
as Sullivan
Ray Meagher
as Hale
Michael Carman
as Roberts
Norm Erskine
as Clancy
