Dirty Pool - S1-E14
Continuity mistake: When Tess is stuck in the mud with her car and Alex is helping her to get out, during their "fight" the mud on Tess' blouse changes a lot.
Continuity mistake: Nick reveals his bull riding scar to Tess and why he is insecure about doing the "strip dance", however he doesn't have a scar in any episode before or after this one.
Continuity mistake: When Tess is fixing the windmill, there is a strong wind blowing, as you can see on the turning windmill and on Tess' hair. When the three other girls look at the windmill from farther away, the windmill isn't turning at all.
Continuity mistake: When Tess is wetting her new boots, check the strand of hair that is hanging over her left shoulder. It changes between the shots looking direct at her and the shots of Meg and Jodie where you see Tess in the mirror.
Continuity mistake: In the scene where Nick is leaving to have dinner with Tess, he is wearing blue jeans, and when he arrives at Tess' he is wearing white jeans.
Factual error: In the beginning, when the stranger kills the brumby with his rifle, you can see that the horse is still breathing when he is driving off. Also later, when the girls find the horse, you see it breathing. (Check the stomach near the legs.)
Turbulence - S3-E30
Continuity mistake: When the private investigator is threatend by the dogs, he steps back and trips over a piece of wood and falls backwards towards the shed. However he slams into the ute which is standing in front of the guy.
Stir Crazy - S1-E8
Continuity mistake: When they are going after the horse they land with the chopper near the boundary fence. Watch behind Alex and Claire, the rotor isn't turning anymore. However when Tess and Becky arrive the rotor is still turning. This happenes more than once.
Continuity mistake: When Becky and Jodie find Brick looking down from the bridge, his face is covered with dirt or debris, however when Becky approaches him at the bottom of the bridge, his face is visible and also the position of his feet change.