As covered in last week’s blog, Doctor Who was headed towards an uncertain future in 1969. The show’s popularity had been waning over time, and lead actor Patrick Troughton was giving firm indications that he had little desire to stay on board for a fourth season as the Doctor. Into this mix, the decision was taken to trial a style of adventure that was to shape the next five seasons of Doctor Who; an adventure set not in the far reaches of space, the past, or the future, but on contemporary earth.
The TARDIS lands in 1960s England, broken down and in need of repair. As the Doctor seeks a technician who can aid him in repairing the broken TARDIS circuits, he is delighted to encounter his old friend Colonel Lethbridge-Stewart, last encountered in The Web of Fear, now promoted to Brigadier, and the leader of a new taskforce called U.N.I.T. The Brigadier reveals that U.N.I.T. are investigating a series of unusual disturbances centred around the world’s foremost supplier of electrical goods, International Electromatics. Forced into investigating the organisation when Zoe is kidnapped by their sinister security team, the Doctor discovers that their head, the mecurial Tobias Vaughan, is colluding with an unnamed alien menace, proposing to invade and take over the world. It is only halfway through this eight part adventure that the Doctor and Jamie learn that “some old friends” are Vaughan’s allies: the Cybermen!
This adventure was to provide one of Doctor Who’s most iconic moments, as the invading Cybermen use the London sewers to position themselves all over London, bursting out as the invasion begins. The sight of the Cybermen advancing from St Paul’s Cathedral has to go down as one of Doctor Who’s most memorable cliffhangers; sufficiently so that Steven Moffat would re-use the scene in Peter Capaldi’s debut season as the cliffhanger to Dark Water.
Even above this, The Invasion is eight episodes of excellence, principally due to the utter brilliance of Patrick Troughton as the Doctor, and Kevin Stoney as arch-villain Tobias Vaughan. While very long by Doctor Who’s usual standards, the story never feels padded, and proceeds at an enjoyable pace. The regular crew are supported by a very able supporting cast, while Nicholas Courtney very firmly seized his opportunity to stake a claim for reappearing in future. If this adventure was his audition piece, he passed with flying colours.
The Invasion is sensational in its own right; but is also significant for the groundwork it established for the future. The entire basis of the U.N.I.T. era was gestated in The Web of Fear and The Invasion, before being properly birthed in Spearhead from Space. Here lies the catalyst for U.N.I.T. (and the Brigadier) as season regulars; for earth based adventures; and for the longer stories of Season 7. As I observed in another blog piece, while the U.N.I.T. era is properly associated with Jon Pertwee’s time as the Doctor, The Invasion is not at all out of place from that era; indeed a colourised version of this adventure would fit very well indeed into the Pertwee collection!
A special mention is also due to this adventure for what it has contributed to the DVD collection. Two of The Invasion‘s eight episodes are missing, giving more than enough material for a viable release, but leaving an obvious gap. It was for this reason that this was the very first adventure to experiment with animation to fill these gaps; and arguably the work is among the very best ever done. The subsequent release of The Moonbase, The Ice Warriors, The Reign of Terror, and especially The Power of the Daleks only happened thanks to the BBC having the courage to gamble on animations for this adventure. For that alone, we should be thankful for this adventure … while still hoping we someday get episodes 1 and 4 back!