The Visitation: Part One 1982
7.6 298 The TARDIS returns Tegan to Heathrow Airport: Tall trees, peaceful, clear skies, thriving vegetation and a touch of sulfur in the air. Obviously the TARDIS is a little out of date (about three hundred years or so), but upon looking around the Doctor finds there's more amiss than his navigational controls, all arising after a recent comet crash that was not on Earth's schedule.
Runtime: 24
Starts: Peter Davison, Janet Fielding, Sarah Sutton, Matthew Waterhouse
Director: Peter Moffatt