Sarah Jane, Harry and the Doctor vs. the Potato People! Those wacky Sontarans -- always up for a duel to the death, even when on a scientific expedition. Also, Ross waxes poetic over first love, Sarah Jane Smith (Elisabeth Sladen), in this week's Companion File.
A mission to Mars in peril. The Doctor, the Brig and Liz are on the scene to find the missing astronauts, defeat the bad guys, and face down a couple of "G's" in the process. We also discuss GMW fave, Liz Shaw in this week's Companion File.