20. The Myth Makers

The Myth Makers must have been an amazing story to watch. Unfortunately this is another story where none of the video exists.

In this story we saw Vicki depart the TARDIS because she fell in love with a Troilus and the Greek handmaiden Katrina joins the Doctor and Steve in his "blue temple".

The surviving audio recording of the story is a joy to listen to. Sweeping landscapes.Greek tragedies. Love on the battlefield. And as usual, mortal danger for our TARDIS crew.

en.wikipedia.org/wiki/The_Myth_Makers

19. Mission to the Unknown

Mission to the Unknown was a one-episode prequel to the forthcoming mega story The Dalek Masterplan. It is unique in that none of the regular cast appear in it and it aired 5 weeks prior to the Masterplan. Unfortunately this episode no longer exists.

en.wikipedia.org/wiki/Mission_to_the_Unknown

18. Galaxy 4

Galaxy 4 kicked of Doctor Who's third season. Unfortunately for many years, all footage was lost until last year when one episode was finally found. That episode is to be released in March at that point, I shall write a review.

en.wikipedia.org/wiki/Galaxy_4

UPDATE 3/20/13
Released with a special edition of The Aztecs, the newly discovered 3rd episode of Galaxy 4 is an extra special extra feature. Nestled within a telesnap reconstruction of the story with the original soundtrack, the episode is a highlight of the piece. It really is a joy to see a NEW episode of LOST Doctor Who. From the extant surviving material, the story presents an interesting gender play and a parable on don't judge a book by its cover. I probably would not have chosen this story to launch the season but with the Dalek Masterplan a few stories away, it was a quieter beginning to a monumental season of Doctor Who.

17. The Time Meddler

Our intrepid TARDIS crew has reached the end of their second season. When we started this sophomore season, we had all of our original crew with the Doctor, Susan, Ian and Barbara forming a close family unit after the harrowing adventures of the first season. Over the course of season two, the Daleks reappeared twice and each time, the Doctor lost companions. In our last adventure, Ian and Barbara departed the Doctor in the Dalek time machine to return to their proper place in time and space. In this final adventure of the season, we welcome a new addition to the TARDIS and meet a new adversary.

Rescued from the Mechanoid stronghold on Mechanus, Steven Taylor stumbles into the TARDIS and joins the Doctor and Vicki on their journey. Landing in a Saxon village in 1066, Steven initially doesn't believe he has traveled in time, as they find several anachronistic items littered about. We are introduced to the Meddling Monk, who apparently is a member of the Doctor's as-yet unnamed alien race and he possesses a TARDIS of his own! While the Doctor adhere's to his people's rule of not interfering in history, the Monk takes great delight in breaking the rules for his own personal gain.

It's interesting to learn a little more about the Doctor's past but not much. We only see the Monk once more in the show's 50 year history and it takes another 4 years before we learn anything more of the Doctor's people. The Monk could be considered a very primitive prototype for the Master. This is also the first time we see the Doctor's TARDIS envy.

In the end, the Doctor defeats the Monk, booby traps the Monk's TARDIS, and history is saved. Our newly christened TARDIS team of the Doctor, Steven and Vicki depart for new adventures in time and space. The next season of Doctor Who will bring changes to the Doctor's life and TARDIS crew on an almost exponential scale and the constantly changing trajectory of the show continues. Unfortunately many episodes of the next three seasons are missing and presumed destroyed. This season two is the most complete season until we reach season six.

Now 2/3rd the way through his tenure as Doctor, you can see William Hartnell visibly aging and flubbing his lines more. While he's still pretty spry and engaging in hand to hand combat, he is slowing down. In his final season, both the Doctor and William Hartnell will face his greatest challenges with stunning victories and the deepest of defeats for years to come.

en.wikipedia.org/wiki/The_Time_Meddler

16. The Chase

The Daleks once again return to wreak havoc on the Doctor's life and once again, the world of Doctor Who is never the same again. Last time we encountered the Daleks, the Doctor's granddaughter Susan left. This time, the Doctor is able to return Ian and Barbara to their proper place in time and space via the Dalek's time machine. And with that, all of the Doctor's original companions have departed. The parting moments are played with great emotion, with the Doctor genuinely saddened but understanding their desire to return home.

This story is a jolly romp, hopping around all of time and space, as the Daleks "chase" the TARDIS crew to various times and locations. We see the Empire State Building, the Marie Celeste, and Frankenstein's House of Horrors. Our last stop brings us to Mechanus where we meet the Mechanoids, large giant rotund robots who give the Daleks a run for their money.

In the final episode, we are introduced to Steve Tyler, our new leading man. He'll get a proper run through next episode. But with Ian and Barbara gone, Vicki still with the Doctor, and Steven coming in, the show begins a new chapter for the Doctor and the pattern of constantly changing companions truly begins.

en.wikipedia.org/wiki/The_Chase_(Doctor_Who)

Next exciting episode: The Time Meddler!!

15. The Space Museum

In the words of Steven Moffat, "Wibbley wobbley, timey whiney". For the first time, we get an episode about time travel! The Doctor and company "jump the time track" and lands in their own future. It's a fun plot device for a few episodes while they figure out what exactly is going on.

But then THE watershed moment of the series finally arrives. The Doctor incites revolution! While the Doctor has encouraged civil war and fighting between parties before, it was usually between a pre-existing conflict. This time, no prior conflict existed. The "ruling" party wasn't out to destroy anyone (see The Daleks), and wasn't really hurting anyone. Yet Vicki finds a group of youngsters to help revolt against their elders, breaks into their weapons locker, and starts a revolution.

This does seem to be about the kids fighting against the establishment. So while this is the first time we're seeing this, it certainly won't be the last in the shows 50 year history.

en.wikipedia.org/wiki/The_Space_Museum

Next heart breaking episode: The Chase!

14. The Crusade

The Crusade brings us our second celebrity historical of the season with real celebrities! Making their first appearances in Doctor Who are Julian Glover and Jean Marsh. Both went on to great fame outside of Doctor Who but but made some wonderful appearances in the 50 years of Who.

The reality of this story is that episodes 2 and 4 are missing, with only 1 and 3 still existing. I hope that the BBC in their wisdom decides to animate the missing episodes, like they have done for The Reign of Terror, so that the story can be seen in completion in some form.

As always, the BBC excels in historical costume dramas and the production qualities on this story of par excellence. Julian and Jean's caliber of acting just eats of the screen and their scenes together as King Richard and his sister Joanna are electric. It is no wonder that they brought Jean back as a companion for the Dalek Masterplan next season. And Julian returns in Tom Baker's City of Death as Scaroth.

From the two existing episodes, our TARDIS crew appears to be in top form. Vicki does a turn as a boy before becoming a hand maiden to Joanna. Barbara is kidnapped in the first 5 minutes and is dragged across 12th century Palestine. And Ian and the Doctor get in some quality sword fighting time. Good times!

en.wikipedia.org/wiki/The_Crusade_(Doctor_Who)

Next exciting adventure: The Space Museum!!