The Time Guardian

The Time Guardian is a 1987 Australian science fiction film.

Brian Hannant had been drawn to the rock formation at Wilpena Pound in South Australia while making Mad Max 2. This inspired him to write a script with John Baxter in the early 1980s. According to Baxter the script was originally called Time Rider, about a geologist who, while investigating magnetic anomalies around Wilpena Pound in South Australia, encourages a man from the future, who is a scout sent back in time to find a home for his people, pursued by the JenDiki tribe. BaxterThe early scripts contrasted present and future lifestyles, and involved, in addition to the love story, and elegiac relationship between the girl and Prenzler, an old man in the nearby town who held the key to certain incidents in her future. There were elements of satire conceived as descendants of contemporary polluters, our JenDiki were variously the remnants of a mining conglomerate or of a labour union. The modest action climax used a minimum of special effects. ........

Source: Wikipedia