The Night of the Bubbling Death - S3-E1
Revealing mistake: As West drags the body of a bad guy out of the scene, the supposedly unconscious man is holding his head up so as not to have his head dragged through the dirt. A truly unconscious person's head would flop back on to the ground.
The Night of the Bubbling Death - S3-E1
Revealing mistake: West and Gordon burn a perfect circle (unlikely in and of itself) in the metal floor in order to break into the dungeon below. West punches the circle out with his fist, then grasps what should be white-hot edges with his bare hands before jumping through the opening. Even if wood it would still be too hot to touch. (00:32:00)
The Night of the Bubbling Death - S3-E1
Revealing mistake: The rock wall visible through the elevator window is not moving up, but rotating.
The Night of the Bubbling Death - S3-E1
Revealing mistake: The pyrotechnics are visible as a line in the sand that explodes in front of the posse as they begin to pursue West and Gordon.
The Night of the Bubbling Death - S3-E1
Revealing mistake: The arms of the unconscious bad guy West drags by the feet should be dragging above the shoulders, not almost parallel to his body.