The Overlanders is a 1946 British film about drovers driving a large herd of cattle 1,600 miles overland from Wyndham in Western Australia through the Northern Territory outback of Australia to pastures north of Brisbane, Queensland during World War II.
In 1942 the Japanese army is thrusting southwards and Australia fears invasion. Bill Parsons becomes concerned, and leaves his homestead in northern Australia along with his wife and two daughters, Mary and Helen. They join up with a cattle drive heading south led by Dan McAlpine. Others on the drive include the shonky Corky British former sailor, Sinbad Aboriginal stockmen, Nipper and Jackie.The cattle drive is extremely difficult, encountering crocodiles, blazing heat and other dangers. Mary and Sinbad start a romance. Dan speaks out against Corkys plans to develop the Northern Territory. ........
Source: Wikipedia