Intro: When The Sons of the Pioneers sang "Tumblin' Tumbleweeds" they never in their wildest dreams could have imagined the tumbleweeds that roll around the planet Cloris, and they certainly wouldn't have sung a song about them unless it were "The Big Bad Wolf." We will soon learn why as we leave for the planet Cloris and "The Creature from the Pit."

Outro: While no one would deny the enormity of the problem of drug addiction on the Earth, it could be worse. Fortunately we are not afflicted by the most dangerous drug in the universe: zip. But many other universal beings are and The Doctor, Romana and K-9 will find themselves involved with the purveyors of said drug next week when they uncover the "Nightmare of Eden." [source: ChicagoEpguides]