A Scotland Yard detective is investigating a string of robberies and a murder, and the information he uncovers leads him to the estate of a wealthy but strange English family, who share their mansion with a group of nuns. The detective comes to suspect that neither the family nor the nuns is quite what they seem to be.

A mysterious artifact unearthed below a London Underground station proves to have powerful psychic effects on the people around.

Archie Rice, an old-time British vaudeville performer sinking into final defeat, schemes to stay in show business.

In the 26th century, the Doctor and Jo uncover a plot by the Master to provoke an interplanetary war between Earth and Draconia.

When a government official disappears in the London tunnels, after several reports of missing people in the same location, Scotland Yard start to take the matter seriously, along with a couple who stumble into a victim by accident.

Trish is a lonely young wife in a tense marriage, living at the top of a high rise block of flats. She looks to the police and her husband for help when she finds her baby has been stolen from its pram.