Theory:Torchwood television discontinuity and plot holes/Children of Earth: Day Two


 * Jack was screaming while his cell was filled with concrete, wouldn't this mean that some of it would get into his mouth and solidify there? Also, wouldn't it solidify on the door itself preventing it from being opened?
 * It took awhile for the concrete to get to the level where it completely covered his mouth (Jack isn't lying on the floor). Concrete is not glue; pulling back the door would be the same as pulling off a mould (indeed the interior of the door leaves an impression on the concrete).


 * When the concrete-filled cell is pulled out of the wall by the forklift, it appears to be much smaller than what was seen earlier when it was filled with concrete. In fact at some points it doesn't appear wide enough for Jack Harkness to be lying horizontal.
 * Possibly a trick of the camera angle.


 * When the concrete cell smashes apart in the quarry, there's no sign of the gurney Jack was lying on.
 * Again, possibly the camera angle obscured its wreckage.


 * Why was Jack just a skeleton when he started regrowing? His arm at least was shown to be mostly intact and it's highly unlikely that his shoulder and skull piece were reduced to bone.
 * The rest of his body isn't visible, his arm (and the parts they took away in the small "body" bag) were not destroyed but the rest of his body was and, as time goes on, he grows new parts, reforms first (into that sticky bones we seen) then into a charred man and then back to normal.


 * Rhys said his car was brand new, but the licence number said it was made in 2008, and the episode is set in 2009.
 * He probably meant that he only bought it recently.


 * A concrete block would not break falling from that height, but would only chip.
 * Jack's presence within may have compromised the structural integrity of the concrete.Different dynamics - velocity for example.


 * Why does Gwen never seem to run out of bullets?
 * it could be the type of gun she carries - alien origins?


 * Would one bullet really blow up a whole cement mixing lorry.(No. This has been debunked on several websites, most notably "Mythbusters". Most bullets are generally made of copper and lead, which do not spark when striking a surface. A bullet puncturing a gas tank or any part of the engine will not cause an explosion. Car explosions are "movie physics" and rarely occur in real life.)


 * Why would the government hire snipers who were such awful shots even at close range.
 * Ianto and Gwen were moving at the time, so they may not be the best at firing at moving objects.


 * How did Ianto know exactly where Jack's cell would be?
 * He watched them pour the cement in, so he knew where he was.


 * Partly due to the differing nature between Torchwood and DW, Jack's clothing does not survive a bomb blast, even though it survives being incinerated in Journey's End
 * It's not known that it didn't survive.Jack got out prior to being completely incinerated.