Set in northern Australia before World War II, an English aristocrat who inherits a sprawling ranch reluctantly pacts with a stock-man in order to protect her new property from a takeover plot. As the pair drive 2,000 head of cattle over unforgiving landscape, they experience the bombing of Darwin by Japanese forces firsthand.

Police catch a break when suspected kidnappers are spotted on a train heading towards Union Station. Police, train station security and a witness try to piece together the crime and get back the blind daughter of a rich business man.