The Way of Violence Has No Mind - S2-E15
Revealing mistake: During the cabin gunfight, when Chu is out of ammo and sets the rifle down, he puts the rifle on top of 3 dozen unused rounds that are supposed to be spent rounds. (00:38:40)
Revealing mistake: When Fierro's hawk lands on the boy's arm, we can see the protective gear wrapped around the boy's arm under his sleeve. (00:06:10)
Revealing mistake: The stunt man's face is shown as Caine grabs and throws him into the pit.
Revealing mistake: The string controlling the black bird flying over the body of the boy in the room is visible.
Revealing mistake: David Carradine's stunt double is obvious (different face, darker hair) in the fight scene between Caine and Shelby Cross.