The Time Lords discover that the Master has stolen their secret file on the Doomsday Weapon and decide to send the Doctor and Jo on to retrieve it for them. The Doctor finds himself on an alien planet in the middle of a territorial dispute between peaceful colonists and the Interplanetary Mining Corporation. Watch out for Roy from EASTENDERS.
Director: Michael E. Briant
Producer: David Bajurny
Actor: Helen Worth
Actor: John Ringham
Actor: Roger Delgado
Actor: Jon Pertwee
Actor: Nicholas Courtney
Actor: Katy Manning
Actor: Nicholas Pennell
Actor: Bernard Kay
Actor: John Scott Martin
Actor: Pat Gorman
Actor: Roy Skelton
Actor: Tony Caunter