Plot hole: In order to build up suspense, Virgil and Brains stand on the Crab Logger as its dangerous fuel is pumped out, despite the fact that it is hanging on the edge of a precipice. In fact they could have left as soon as they had plumbed in the pipes to empty the fuel tanks - the whole procedure is controlled by Scott in Thunderbird 1 and they make absolutely no contribution to the operation at all. They do not need to disconnect the pipes; they are left behind and dropped from Thunderbird 1 as planned. They just stand there chatting about how much danger they are in until jumping clear at the very last second. Silly buggers.
Plot hole: Michael sees that Tancredi needs help in the sickroom/nurse room from a TV monitor. So he climbs up to the roof and looks down to see Tancredi screaming for help. So he goes down, under the field. And then he is in the space between the inner roof and inner ceiling, and he walks to save Tancredi. Why didn't they use this escape way when the first failed? And they didn't need that key from Tancredi. They could escape just by walking in the ceiling space.
Plot hole: At the end of this episode Red takes off his shirt revealing his burned back, which leaves us to think that he might be Elizabeth's dad. However, this particular mark should have been noticed and written down in Red's prisoner file when he was taken into custody the first time (Episode 1). In that case Elizabeth would already know that Red is burned and could have asked some questions about it.
Plot hole: In this episode Kes states that she has to decide now whether to have a child or not because Ocampa women can only get pregnant once and deliver one child. If that was the case they would have died out a long time ago, or never even evolved, as two people only getting one offspring would reduce the population to 50% of the original figure each generation.
Plot hole: If Spike and his gang only take a few hours to break through the door to Ford's club in 'Lie To Me' (which we are told is six feet of solid steel), why can't Angel break through a thin wire door that visibly shakes every time he hits it, given the same amount of time? (00:38:05)
Plot hole: Solo blows open the ceiling vent of Illya and Marion's cell, and she stands on Illya's shoulders until Solo can reach her and pull her out. This leaves Illya with nothing/no one to stand on, no way to reach the vent and no apparent way out of the cell. But he's out just the same in the next scene, with no explanation as to how. (00:42:40)
Plot hole: When Bo Jenson visits Richard Allen, he takes the elevator at the far south end of the ER wing, near the ER nurses' station, straight up to the 6th floor and then turns left to get to Richard's room in the short hallway, by the windows. When Richard jumps out the window and lands on the ledge, we see he's on the south side of Rampart's main building. Considering the actual floor plan of the hospital, this is completely impossible. The ER is located in the south lower wing and only has two floors, so Jensen could not have gone up to the 6th floor from the elevator he took.
Plot hole: Throughout the series, auxiliary characters are always far too willing to give all kinds of information to Tru. Doctors and registrars constantly give her privileged information about patients and students. Tru is often able to retrieve information like addresses and phone numbers from people's service and utility companies, when normally you must verify your own information before they will even talk to you about your account. Of course there can't be an episode if Tru doesn't quickly find the person who asked for her help, even though she doesn't usually know much more than their name, but it's still a bit conspicuous.
Plot hole: Huge plot error: Apophis and Clorell (Skara) should not have survived the explosion in Season 2, Episode 1 (when they attack Earth with two ships). In "Family" they explain that Apophis and Clorell survived by escaping through the stargate aboard Clorell's ship moments after Daniel Jackson did the same. However, when Daniel Jackson escapes through it, Apophis and Clorell are not even on the right ship, and there is 1 second left on the C4 timer when Daniel escapes. They actually show Daniel Jackson escape, and then cut to Apophis and Clorell still aboard their ship. So apparently, Apophis was able to "ring" from his ship over to Clorell's ship, make it to the stargate room, dial an address, and escape through the stargate all within literally 1 second. Is this guy related to The Flash?
Plot hole: After Storm's attempt to escape the Genoshan prison is thwarted, she ends up in the ocean right at the shoreline of the beach, where she is captured by a Sentinel. Aside from the fact that it makes no sense for a Sentinel to be hiding in the ocean in the event that a mutant tries to escape the prison, there is absolutely no way that a two-story tall robot could hide in the ocean right by the beach, as the water would be way too shallow. You can even see that the water level only goes up to the Sentinel's ankle area when it is standing upright in the ocean. (00:03:15)
Plot hole: The Krang ship carrying the shipment of mutigen is small, about a scout class ship. And it is seen flying past April and only a little bit above the top of the lower buildings in the city. The turtles have time to fight for a bit allowing the ship to get quite far away from April and her father. Yet Mikey accidentally causes all the canisters of mutigen to fall out of a hole in the floor and most are seen falling directly straight down towards the street, the ship being only about 5 to 8 stories above the ground. Yet somehow when it cuts to April seeing this, suddenly the sky is full of and raining canisters all over the city. And if cuts to her face even showing them raining down behind her. Which makes no sense because of how low the ship was, the canisters falling directly straight down in a tight cluster, and the ship having passed April a while back.
Plot hole: It turns out that the Venus Fly Trap ate Dr. Collosso, but this doesn't make sense for a few reasons. 1. There's no way that it could've opened the kennel without completely destroying the door. 2. The shot was off it for only 3 seconds, it couldn't have eaten him in that amount of time.
Plot hole: After Sabrina and Tarloff have finished their rehearsal, Kris is able to pick the real sword with no hesitation. There are still six swords left in the basket (one is real, five are fake). They all look the same, so how could Kris know the exact position of the real one? (00:43:30)
Plot hole: When the Corrodium Beam is shut down, there is a brief scene of the sky clearing at Mount Rushmore. But on the cliff face all four heads are seen, whereas the head of Theodore Roosevelt got crumbled in "Secrets," and it's too far forward to have been carved into the mountain face, in place (and same position) of the old head, yet again.
Plot hole: The CSIs catch a murder suspect putting down a drink can when reviewing security footage of a robbery, and immediately realise they didn't see it at the scene so assume one of the first cops on the scene must have removed it. Thing is though, the murderers shot out the security camera before the actual shooting occurred, meaning there was loads of time off-camera for the killers to take the can with them, but the CSIs never even consider this - they jump to the conclusion a cop took it even though there's no actual evidence for that.