Contact has been lost with Mars Probe 7. When contact is also lost with the recovery ship, UNIT is called in and the Doctor learns that someone is sending messages to the vessel.
- Drama
- Year 1970
- 24 min
The Third Doctor: Jon Pertwee Bursting into colour, Doctor Who underwent a dramatic makeover when Jon Pertwee’s debonair dandy arrived, exiled to Earth for four years of action-packed, moralistic adventures.
- Year: 1970
