In the 1950s the Australian government agreed to let the British government test atomic bombs in South Australia's deserts. Prime Minister Menzies was flattered to be needed by "the mother country" and the rise of the science of physics and the power of atomic weapons was irresistible. The Australian public was assured that there was no risk from radioactive fallout, but one man wasn't satisfied. Biochemist Hedley Marston believed himself the only person qualified to assess the risk to biological organisms from radioactive fallout. His experiments proved that the government's Safety Committee were telling lies. Fallout is the story of a government desperate for prestige and one man willing to risk everything to expose the danger of radioactive fallout.