Intro: Everyone, it is said, has a double, or has had one in somewhere in time. Nyssa will discover the accuracy of that statement and The Doctor will get to cavort in a clown suit for a while. But, as you have no doubt inferred, all will not be fun and games in discovering the secret of the "Black Orchid."

Outro: Next week, we travel to the 25th century when Buck Rogers flourished. The Doctor and friends will not encounter old Buck. They will, however, come across some old acquaintances. If you're curious, be with us next Sunday at 11 and experience "Earthshock." [source: ChicagoEpguides]