|51||3A||Spearhead From Space||03 Jan 1970||4||All|
|52||3B||The Silurians||31 Jan 1970||7||All|
|53||3C||The Ambassadors of Death||21 Mar 1970||7||All|
|54||3D||Inferno||09 May 1970||7||All|
The Doctor is banished to Earth and his ability to travel in time is removed. He works for his friend the Brigadier from UNIT as scientific advisor, and is given an assistant. Initially this is Liz Shaw. From the beginning of this season, the stories were all made in color, although not all of them survive in this form.
Spearhead From Space
The Doctor investigates mysterious deaths and discovers plastics that are being controlled by an alien intelligence. Soon an army of lethal plastic shop dummies is on the move.
Video Release: PAL VHS BBC Video BBCV4107, Cert U. NTSC Version released by CBS/FOX (5421)
A secret underground research center is having serious problems with both personnel and unexplained losses of power. The problems are traced to a cave nearby where an ancient race of reptilian humanoids has been reawakened after millions of
years of suspended animation.
Video Release: PAL VHS BBC Video BBCV4990 (Two Tapes), Cert PG. NTSC Version released by CBS/FOX (8256)
The Ambassadors of Death
The Doctor investigates a space probe that returns with a crew who are most certainly no longer human. Can he stop criminal factions making use of the aliens to carry out their schemes?
When an attempt to drill into the Earth's core does wrong, the Doctor gets transported into a parallel universe, where Britain has been ruled by a Fascist dictatorship for years. He meets the alter egos of his friends - the one-eyed Brigade
Leader, and Captain Liz Shaw - who never become a scientist! To his horror, the drilling project unleashes an inferno which destroys the alternate Earth. Back in our universe, can he stop the drilling before the same fate befalls our Earth?
NTSC Version released by CBS/FOX (8192)