Mr and Mrs Stafford decide to run an "open" marriage, which, of course, relies on complete honesty.

The Doctor returns to Gallifrey, claims his rights and is inaugurated President. It soon turns out that he has led a group of aliens called Vardans to the planet to eradicate them completely. After they are destroyed, the Sontarans take their opportunity and follow them in their invasion until they are destroyed by the Doctor.

An American showgirl becomes entangled in political intrigue when the Prince Regent of a foreign country attempts to seduce her.

James Bond must investigate a mysterious murder case of a British agent in New Orleans. Soon he finds himself up against a gangster boss named Mr. Big.

The TARDIS crew take up residence near Rome in 64AD, where Ian and Barbara are kidnapped by slave traders, and the Doctor's imitation of Maximus Pettulian sees him taken to the court of Emperor Nero where he inadvertently plays a part in deciding the course of history...

One time members of a resistance group come together every year to remember their dead leader, betrayed to and executed by the Nazis. When it seems that they might finally know the name of the traitor - and that he or she comes from within their own unit - their annual gathering becomes a deadly trial...