Theory:Doctor Who television discontinuity and plot holes/The Five Doctors


 * When the checkerboard floor becomes electrified and the Cybermen are zapped, one particularly dim Cyberman who had not stepped on yet continues obliviously on to the platform to meet his fate.


 * After being frozen by Borusa, the Brigadier clearly moves his head to watch Borusa go.
 * The Brigadier has had training to resist such mental attacks see NA: No Future.''


 * The Cybermen following the Master into the Tomb must be blind not to see the Doctor.
 * They do see him (one or two even watch as he and Tegan run off), they just aren't concerned with him at this point.''


 * The Master's first crossing of the chessboard is in a perfectly straight line, with a brief pause in the centre. Where is his application of Pi supposed to come in?
 * It's possible the sequence only runs in one dimension.''
 * Pi can certainly be used to calculate a straight line, and since we don't know what calculation the Master and the Doctor used it for, we can't really dispute the result.''


 * If the Time Lords can offer the Master a new life, then why is Borusa so worried about his own mortality?
 * Just because they can offer a Time Lord a new cycle of regenerations doesn't mean it's not exceptional to do so. There's no reason for the High Council to grant Borusa more regenerations. Besides, Borusa is not after more regenerations, which after all, can go wrong, and do not protect one from devastating injury, but true immortality.''


 * The Master meets the Fifth Doctor on his way to the Tomb, then offers to lead the Cybermen to the Tomb. He is then beaten to the Tower by the First Doctor, who only started his journey when Susan and Tegan arrive back. They were delayed chasing the Third Doctor.
 * The Master is stalling for time, trying to come up with a plan to get the upper hand over his captors.''


 * Like in Earthshock a Cyberman uses the phrase 'Excellent' when they are said to have no emotions. Maybe the Cyberleader has a limited sense of emotion.
 * Or the phrase might simply be a stock phrase the Cyberman has been programmed to say, but is otherwise as meaningless as "Have a nice day". The word "excellent" doesn't necessarily convey emotion, simply that something that occurred is in line with their purposes.''


 * How could the Brigadier say "Nice to see you again!" to the Master after the latter has just regenerated and so the Brigadier wouldn't recognise him at all?
 * He figures it out like the Third Doctor did. The two incarnations of the Master don't really look that different. Also there is nothing to indicate the Brigadier hadn't met the Master in his current form at some earlier time. Additionally, unlike the Doctor, who changes outfits with each regeneration, the Master is still wearing a basic black outfit.


 * No reference is made to the Doctor's newest companion, Kamelion, who only joined in the preceding serial; even the android's former owner, the Master, makes no reference to him.
 * MA: The Crystal Bucephalus accounts for why he does not feature. As for the Master it is not clear where in the Master's personal timeline he is taken from, nor would the Master be particularly interested in Kamelion given the circumstances.''


 * How can the Second Doctor know that the Time Lords sent Jamie and Zoe back to their own times and wiped their memories of him when he regenerated at the end of the War Games? It is clearly Jamie's recognition of the Brigadier that tips the Doctor off, since Zoe does not mention the Brigadier by name during the scene.
 * See Season 6B, a theory created by fans and later supported by Terrance Dicks in his Past Doctor Adventures novel Players, that suggests the regeneration did not occur immediately after the end of The War Games and that the Doctor went on to have several adventures working for the Celestial Intervention Agency before finally regenerating. This theory is also intended to cover discrepancies surrounding The Two Doctors.' (Even without Season 6B, it's clear from prior dialogue that the Second Doctor remembers the events of The Three Doctors'', leaving open the possibility that the fate of Zoe and Jamie was communicated to him by his future self.


 * How does the Doctor know the Time Scoop didn't kidnap Jamie and Zoe from a time when they were still travelling with the Doctor?
 * Because he can see they have aged since then.''


 * Susan recognises the Cybermen when she sees them outside the TARDIS, yet she stopped travelling with the Doctor long before his first encounter with them.
 * She sees them in this adventure when she is with Tegan who names them so she knows what they are called from there. She may also have become aware of the Cybermen while living on Earth in the 22nd century, from historical records of events such as the Battle of Canary Wharf and other Cybermen incursions on Earth that may have become public knowledge by then.


 * The First Doctor and Susan stop to rest in the Death Zone. Susan then points out the TARDIS with surprise and delight, though it is in an open space not ten metres before them
 * Perception filter at work? They were tired from walking and just hadn't noticed it there.''


 * If Borusa can use the time scoop to bring the Doctors into the Death Zone, could he not use it to take the Daleks, Cybermen, Yeti and Raston Robot out?
 * He most likely took out most of the obstacles but no one can make it perfect. Plus there is no reason to think just because he can put them in, he can take them out. After all, a parachute only works one way. It is also possible, as implied by his becoming the baddie, that his most recent regeneration has left him mentally unbalanced, and so he is perversely amused at the idea of leaving enemies in the zone for the Doctor to face. As he remarks after being unmasked, slightly derangedly, 'It's a game... within a game'.''


 * If the transmat can take Borusa, the Fifth Doctor, Chancellor Flavia and her guards directly to the Tomb of Rassilon, why the elaborate plan to use the Doctors to find it?!
 * The transmat could only take people to the tower after the force field was lowered.''


 * Despite the few, somewhat tame obstacles the Doctors encounter, they make their progress to the Tower with relative ease.
 * Borusa most likely took most of them out. Plus many could have died off.''


 * The destruction of the Dalek, which was supposed 'to play the Game too well' not so much demonstrates the cunning of the Doctor as the stupidity of the Dalek.
 * That's a personal opinion on your part. Daleks usually are quite adept at killing, where the Doctor's not involved.''


 * What is the structure the First Doctor and Susan encounter the Dalek in? Aside from the Tower, no other structures are seen throughout the whole of the death zone.
 * That doesn't mean there aren't any. It could be the remains of a downed Dalek scout ship, dumped in the zone by Borusa. Susan does suggest that they are on Skaro.''


 * When each of the Doctors are taken out of the Doctor's timestream, only the Fifth Doctor is affected. Why aren't the Second, Third and Fourth getting the same reaction when the First Doctor is taken out and so forth?
 * They probably had the same reaction but it was not shown on screen or perhaps the previous Doctors were taken out of time at the same instance. Or perhaps only the Fifth Doctor felt the effects as he was at the time the "current" Doctor. Further, it's doubtful the other Doctors felt the effects as, like the Fifth, the other Doctors were among witnesses who would have asked the Doctor if he was alright when he yelled in agony (the Second Doctor was standing in front of the UNIT receptionist and the Fourth, putting aside the fact that he was in an insert from Shada was punting with Romana) or, in the case of the Third Doctor he was driving, and had he been affected, when we first saw him he wouldn't have been so pleasantly enjoying a drive in Bessie (in fact he'd be lucky if it didn't make him crash.)''


 * Why doesn't the Fifth Doctor remember the events already (likewise the Third, Second, etc.).
 * This is an issue faced by every multi-Doctor story and requires suspension of disbelief from the audience. It can be rationalized that the memories of the interaction were suppressed by the Time Lords, which is supported by dialogue in School Reunion suggesting Sarah Jane and the Tenth Doctor *may* have no memory of meeting during The Five Doctors, or Sarah Jane, did not know if the Fifth Doctor was an earlier incarnation and hers, the Fourth Doctor, was the most recent, or they may just chosen to have not mentioned it.
 * A further rationalization is that the lack of memory is yet another effect of the 'time differential' that aged the Fifth Doctor when he met the Tenth Doctor. The Doctor's memories of previous encounters with his past selves may be distorted or incomplete due to the time differential shorting out. He may recall some details, but he does not have a complete memory of the event. Also note that in Fires of Pompei the Doctor tells Donna that there are some moments that are in flux, this is also mentioned in The Waters of Mars, the moments when the Doctors are taken out of time are these types of moments.''


 * When on the chess board, the Cyberman aims at the Master, when he falls over - The Master is nowhere to be seen!
 * He moved.''


 * The TARDIS is virtually indestructible. Why are Turlough and Susan so concerned about the ring of bombs the Cybermen have placed around the ship?
 * The key word here is 'virtually'. They may recognize the type of bombs being used as a kind that could harm the TARDIS. They both have personalities prone to worrying as well.
 * In addition, the TARDIS defenses may have been shut down when it was immobilized in the zone. As shown in DW Journey's End, the TARDIS is extremely vulnerable without its defenses.''


 * Who is controlling the Yeti and why?
 * Either it is working on some kind of default setting to destroy all humans it sees, or the Great Intelligence (being spread out over the astral plane) has been drawn to this lone, active one of its servants and is taking this chance it has to avenge itself on the Doctor and the Brigadier.''


 * During Borusa'a initial unmasking and subsequent conversation with the Fifth Doctor, he holds the model of the Master from the board and says 'I gave you an enemy to face', as if taking credit for the Master's presence in the zone. However, he stated earlier in the story that the other members of the High Council insisting on involving the Master did 'not please' him.
 * The Doctor doesn't know that, and it allows Borusa to save face. Also, Borusa may have known the High Council's decision and even manipulated that decision. He then would have feigned disapproval in order to disguise his plan.''


 * Susan's reunion with her grandfather doesn't seem to be as emotional as one would expect given the Doctor's reaction to her departure in The Dalek Invasion of Earth.


 * Why doesn't Sarah Jane just find her own way up the slope she fell down? The slope isn't deep, you could walk up it.
 * She was in fog and disorientated after being taken to the Death Zone.''


 * The statements that the ring grants you immortality contradicts the statement in The War Games, when the Second Doctor said that "we can live forever barring accidents".
 * He may not have been referring to the ring at the time; or may not have known of the ring, he may have only known of Rasilon''


 * When the Second Doctor is in the caves with the Brigadier at one point you can see a boom mic at the top of the screen.


 * Susan, at this point is married to David and should have four children, Ian Campbell, Barbara Campbell, David Campbell Jr and Alex Campbell. Where are they? they would, presumably, seeing how affectionate Susan is the the 1st Doctor, still be young.
 * Susan, being the Doctor's granddaughter, is not stupid, and she is younger than the Doctor, her senses are probably better. If she felt, or heard, the Time Scoop coming, she would have presumably either a) hidden her children to keep them safe, b) asked David to keep them safe, or c) it's not late enough in her timeline for the children to be born, after all, Ian, David Jr and Barabara are adopted, because we do not know how old they were when they were adopted by David and Susan, they may have already been teenagers, and thus, may already be grown up and be married with children of their own, and Alex was born 17 years before, David, Susan's husband died, so presumably, because David cannot have been older than 30 when he married Susan, and she, presumably as they adopted three children, was not old enough to have children, Alex was not born at the time of the Five Doctors, as Susan stated that she was 15 when she left the Doctor, and looks to be about 10 years older, possibly 15, when she was reunited with her grandfather, thus her husband was only about 40, or 45, at the latest, so still in the years able to have children, so Alex may not be born yet.
 * She only "should" have children if one believes certain stories in other media. It is not at all uncommon to find televised Doctor Who that contradicts a comic, novel, short story, or audio adventure.  Television production crews have never regarded themselves beholden to stories in other media — especially not in this case where the story in question was published after the production of The Five Doctors.


 * The First Doctor fails to recognize the Master, despite them knowing each other since youth (plus the established ability of Time Lords to recognize each other); even though the Master has changed appearance, the Third Doctor recognizes him instantly.
 * Since the Master is not in a Time Lord body, but the stolen body of Tremas, it's possible "Time-Lord recognition" doesn't work (which may explain why the Ainley version of the Master was able to disguise himself in other Davison-era stories) so the First Doctor doesn't recognize him as one of his kind; the Third Doctor, meanwhile, may have had an unchronicled encounter with this version of the Master.