Knever

Mirror, Mirror - S5-E11

Revealing mistake: When Carter and Jo almost crash into the reflective smart dust wall on the road, Carter puts his hand up and waves it, to see his mirror image doing the same. Carter's mirror's hand movements are out of sync, which reveals that the "mirrors" are the actors, and the "real people" are doubles.

Knever

In Too Deep - S5-E8

Plot hole: Carter is apparently just learning about Feynman's Day, which Allison explains as "Eureka's version of April Fool's Day." It's highly improbable that Carter could have lived in Eureka for five years and still be oblivious of this, especially given all of the hijinks that happen.

Knever

This One Time at Space Camp... - S4-E18

Other mistake: When Holly and Fargo are playing Dungeons and Dragons, Holly rolls a d20 die and yells, "Critical hit!" but we can see the 20 on one of the upper sides of the die, meaning that she actually rolled a 2, which is most definitely not a critical hit (and actually nearly a critical miss).

Knever

Liftoff - S4-E11

Revealing mistake: When Jo comes riding in with the horses, you can tell that it's a stuntwoman in the far shot.

Knever

Reprise - S4-E12

Continuity mistake: When Jo comes up to see her new house burned down, there's a lot of sunlight. When Zane passes by, the shot changes and nearly all the light is gone, as if it were dusk.

Knever

Stoned - S4-E7

Continuity mistake: At the end of the previous episode, when Carter tells Grant not to plan the wedding just yet, Carter leaves Cafe Diem and Grant says "May the best man win," as an aside. In this episode, the replay shows Grant saying this while Carter is still in the cafe, just in front of him.

Knever

All the Rage - S4-E3

Continuity mistake: When Fargo and Jo are going to the section three lab, a scientist holding a beaker runs into them. He spills the liquid and bends down to clean it up. The amount on the floor changes from shot to shot.

Knever

All the Rage - S4-E3

Revealing mistake: In the very first shot, we see the sky, and you can tell it's a digital image imposed on a green screen instead of a shot of the actual sky.

Knever

Phoenix Rising - S2-E1

Other mistake: When Allison video calls Jack as he's finishing bathing, apparently she can see below the belt, as she remarks for him to cover himself up. But he gets dressed and doesn't move any reasonable distance from the screen, and we then see Allison's view which only captures Jack's torso, so she never would have seen his privates anyway.

Knever

Phased and Confused - S3-E6

Plot hole: When talking about rescuing the kids, Carter mentions them in the plural. But so far, all they have to go on was Zoe's birthday, so they wouldn't have known that anybody else was there, and Thorne also had not said anything about Zane.

Knever

Phased and Confused - S3-E6

Other mistake: Captain Eureka losing his finger makes absolutely no sense. He doesn't cry out in pain, there's no blood, and where the finger ended up is completely illogical. The finger didn't just sever on its own; it's shown that severing only occurs when passing through objects. Captain Eureka goes through a wall that is a good fifteen feet away from where the finger is discovered, and it is implausible to think it could have rolled there on its own.

Knever

Phased and Confused - S3-E6

Continuity mistake: When Captain Eureka puts out the fire at the pumping station, Jack's Jeep somehow gets on fire, but we are able to see where the fire went, and it didn't come anywhere near the road or the Jeep.

Knever

All That Glitters - S2-E12

Continuity mistake: We see that there's a "Do Not Cross" hologram in front of Cafe Diem when Henry arrives to check things out. When the group leaves, the hologram disappears from the outside shot.

Knever

Maneater - S2-E11

Continuity mistake: When the toilet at the Sheriff's Office explodes, it slides out into the main office, with no smoke coming from it. Two shots later, it is now emanating smoke.

Knever

Phoenix Rising - S2-E1

Continuity mistake: When Taggart shoots the pile of skin grafts, it explodes, covering him, Jack, and Jo in guts. There's nothing on Tag's shoulder at first, but after a couple of shots, there is now a slab of skin on his right shoulder.

Knever

Primal - S1-E9

Revealing mistake: When we first see the army of Starks outside Global Dynamics, it's quite obvious that only one of them is actually the actor that plays Stark; the others are merely people who look similar.

Knever

Pilot - S1-E1

Other mistake: When the parents freak out about Brian being missing, the back of the camper is shown, as is the part of the camper that's missing due to the distortion sphere. But it doesn't make sense; there are some parts of of the camper that shouldn't be there, mainly the one piece above the ground, where the sphere scorched the pavement but left the camper's end right above it completely intact.

Knever