Will Barton

Trying to work out why people have been disappearing from Perivale, Ace is cornered by a Cheetah-Person on a horse called Kara, who transports her to a far-off planet.

As the alien world dies around them, the Doctor and the Master fight like animals before escaping to Earth, where their war ends. And somewhere else, the tea is getting cold.

The Doctor and a number of people from Perivale follow Ace to the Cheetah-People's world, where the Master lies in wait. He cannot leave without the Doctor's assistance.

Someone is murdering the citizens of Demeter City and selling the vital organs to a physician for organ transplants. Lieutenant Brogan (Ted Shackelford) races against the clock to solve the mystery—unaware that he’s about to become on of the donors.

Officers Jane Castle (Simone Bendix) and Jack Haldane (Rob Youngblood) are assigned to transport a prisoner to Asteroid A-5, also known as “The Rock”. Little do they realize that the prison has already been taken over by a cADRe of ruthless convicts.