The Flying Doctors (1986) : 5x5

Chris and David arrive at a place to do a clinic run, a mother lives there with her 2 daughters. They seem like they have something against men and aren't too keen on David, they were expecting Kate instead of David. David has to sleep in the shearer's quarters. When older daughter sees her sister in the barn kissing a bloke she goes after the bloke with a whip. The younger daughter has had enough and wants to go to Sydney to look for her father, her mother is against this. Then it comes out that the father abused the older daughter.