Eric Reiman

The film tells the story of the Australian Light Horse cavalry which operated in the desert at the Sinai and Palestine Campaign during World War I. It follows the adventures of three rowdy heroes in fighting and romance. The film culminates at the Battle of Beersheba which is reputedly "the last successful cavalry charge in history". The film was clearly a propaganda weapon, to aid in recruitment and lift the pride of Australians at home during World War II. (Wikipedia)

In Europe, a peaceful Czech scientist, Professor Marnelle, has unintentionally developed a nerve gas while working on a new fuel. Marnelle doesn't want to use his invention for evil but he's threatened by his Nazi masters, including Von Schweig with a concentration camp. Marnelle destroys his lab and manages to escape with his daughter Elsa - but is then recaptured.

A family from an unnamed European country move to a town in Australia.