Revealing mistake: When James' craft touches down outside the Sheriff's office, the wires suspending it from above are visible. (00:33:50)
Revealing mistake: An obvious stunt double replaces Marc Singer when he kicks the sheriff's shotgun out of his hand, and also when the truck drives into the lake. (00:05:10)
Visible crew/equipment: The boom mike is briefly visible at the top of the screen when the woman on the horse rides up to Mike and Kyle. (00:06:10)
Continuity mistake: When Willie dies, Howie says 'he's gone' but Willie's head position changes between shots. (00:24:55)
Deliberate mistake: The shot of Willy running away from the parked car is taken from the episode where Elias is killed. Two things give this away - 1) Willy is wearing a different coloured jacket and 2) he is supposed to be seriously injured yet he sprints along the street. (00:08:50)
Revealing mistake: When John is holding the two mice, if you watch his left arm closely you can see his arm jerk beneath the table where he replaces the real mouse with an edible one. (00:20:50)
Continuity mistake: When Charles reads the message about Nathan Bates coming out of the coma, there are two things to look for during the closeup of the note. The logo on the top is replaced by writing and he grips the note in a different position from before. The writing changes yet again when the note is seen from behind. (00:13:35)
Revealing mistake: Several times during the Charles v Mike fight scene it is obvious that Charles has been replaced by a stunt double. (00:43:50)
Audio problem: At the start of Nathan Bates' angry rant, he says 'What do you mean, another van of children got through the border?' and it has obviously been dubbed as it sounds different from his following lines. My guess is that he swore originally, and it was taken out by the producers at the last minute. (00:06:05)
Audio problem: When Mike and Ham arrive at the church, their lines have been badly dubbed as Mike is still supposedly talking to Ham as he gets out and shuts the van door. (00:06:50)
Continuity mistake: When Mike radios Elias he identifies himself as 'wilderness' calling 'Shiloh'. When Elias acknowledges, he also identifies himself as 'wilderness' instead of 'Shiloh'. (00:33:20)
Revealing mistake: When Diana blasts Lydia's shuttle, there is an explosion but the craft is still visible and intact for a brief second. (00:45:20)
Audio problem: Just after Mike wishes Ham good luck, Mike shoots a guard off the roof, but he falls before the gunshot is heard. (00:44:25)
Continuity mistake: When Ham and Mike come out of the main door of the building, Mike shoots a guard standing on the roof. The guard falls off, but when the shot switches back to Mike the guard isn't seen falling to the ground. (00:43:20)
Revealing mistake: When Mr. Chiang does a roundhouse kick against Kyle Bates, he has been replaced by a stuntman. Easiest way to tell is by his hairstyle. (00:37:40)
Revealing mistake: When Diana offers the ants to the two officers, she is gripping the handle differently between the far shots and the closeup. Needless to say in the far shots the officers are not eating real ants. (00:32:50)
Continuity mistake: When Philip is first seen with the metal thing on his lens a buzzing sound is heard. Afterwards, no buzzing sound is heard. (00:17:10)
Audio problem: When Ham grabs Howie's armband and says 'our man' it's painfully obvious that the words have been dubbed by Marc Singer instead of Michael Ironside. (00:19:00)
Deliberate mistake: The shot of the cocoon gestating is taken from episode 2. This is evident because there is sand underneath it and rocks in the background, but when the tracker finds it later, there are no rocks and sand in the tunnel. (00:25:30)
