After they have spent the night together, Casey (Lincoln Younes) begins acting distant towards Sasha, which leads to him receiving some angry words from Sasha's sister Indi (Samara Weaving) and her dad Sid (Robert Mammone).
Lincoln Younes told TV Week: "She feels humiliated and rejected because he just drops her off at home and brushes her off."
"Casey isn't in a very good place emotionally," he added.
After Brax (Peacocke) hears the confrontation between Sid and Casey, he takes him on a trip to the Outback in an attempt to take his mind off things, with Peacocke noting: "The [Braxton] family is in turmoil and Brax has been left to clean up again."
However, unbeknownst to the Braxton boys Kyle, a mystery man who has been following members of the Braxton clan for weeks, has tailed them out into the woods and is watching their every move.
Casey eventually pours his heart out to Brax, and the pair decide soon after to head home. However, just as they are packing up to leave, something happens that will rock the Braxton clan to its foundations.
The scenes will be seen by Australian viewers on Channel Seven next week, and by UK viewers on Channel 5 in November.