A garage mechanic out in the middle of the outback gets involved with the girl friend of a jewel smuggler who is on the run.

“The Sum of Us” is an Aussie story about a father and a son both searching for love and sharing an unconventional bond. Harry, the father, is the caring and open-minded “mate” that borders on annoyance. His son Jeff unsuccessfully searches for love, with the unwanted guidance of his father.