The TARDIS materializes in a quarry and, for once, it’s an actual Earth quarry and not just an alien plant that looks like a quarry.  An explosion both knocks Sarah Jane Smith out and also exposes a fossilized hand that has been hidden away under the rocks for centuries.   The hand belongs to an executed alien was criminal named Kastrian Eldrad (Stephen Thorne, playing yet another Doctor Who baddie).  When the hand is found, it starts to search for sources of radiation so that it can fully regenerate back into its original form and then seek revenge on its home planet.

The Hand of Fear would have been a standard Doctor Who adventure, except that it ended with Sarah Jane (Elisabeth Sladen) announcing that she can no longer handle the death, violence, and occasional mind control that goes along with being the Doctor’s companion.  She asks the Doctor (Tom Baker) to return her to South Croydon.  The Doctor reluctantly agrees.  While Sarah is packing her things, The Doctor suddenly gets a telepathic message telling him to come to his home planet of Gallifrey and he realizes that, even if Sarah wasn’t leaving, he would not be able to take her with him.  When The Doctor tells Sarah this, it upsets Sarah.  Even though she impulsively decided to go home, it’s obvious that it’s not really what she wants.  When The Doctor drops her off on Earth, she tells him not to forget her and we know that he never will.  As the Doctor dematerializes, Sarah looks around and sees that she’s on Earth and probably in England  but nowhere close to South Croydon.Plenty of companions had come and gone before this episode but none of them had quite the impact of Sarah Janes Smith.  Sarah was one of the few companions to actually be viewed as being an equal of the Doctor.  Even though she spent a lot of time doing typical companion things like being menaced by aliens and asking the Doctor to explain things, Sarah Jane still always projected a determination and inner strength that made her more than worthy to be traveling through time and space.  Even dressing like Andy Pandy during her final appearance couldn’t diminish Sarah Janes Smith as a character.

Elisabeth Sladen had the perfect rapport with both Jon Pertwee and Tom Baker.  Sladen and Baker were apparently close enough that they improvised their final goodbye and the emotions in that scene feel very real.  For viewers like me, who were introduced to Doctor Who by PBS airing the Fourth Doctor’s adventures, Sarah Jane was the first companion that we met and her suddenly leaving came as a shock.  She just seemed as if she was meant to be a part of the TARDIS crew forever.

Sarah Jane Smith would return, of course.  There was K-9 and Company in 1981.  There were the Sarah Jane Adventures, which ran from 2007 to 2011.  Sadly, the wonderful Elisabeth Sladen passed away in 2011.  For many of us, it felt like losing a valued a childhood friend.