The Doctor discovers an Interplanetary Mining Corporation ship has landed on the planet in order to mine its duralinium, while Norton begins causing trouble at the colony.
Did You Know?
was originally cast as Morgan by Michael E. Briant
. However, she was replaced by Tony Caunter
when the BBC's Head of Drama Serials made an unusual intervention and decided the role was inappropriate for a woman to perform. Jameson was nevertheless paid in full. See more
Composed by Keith Emerson
and Carl Palmer
Performed by Emerson Lake and Palmer See more