Astronauts rescued from a mission to mars are kidnapped when they arrive back on earth. They seem to have been irradiated, and can now kill people merely by touching them. But the Doctor discovers the astronauts have been replaced with Alien ambassadors who are being forced to behave in a hostile manner. With The Doctor traveling to the alien mother ship, and Liz kidnapped, The Brigadier is left wondering who to trust.

Young orphan Heathcliff is adopted by the wealthy Earnshaw family and moves into their estate, Wuthering Heights. Soon, the new resident falls for his compassionate foster sister, Cathy. The two share a remarkable bond that seems unbreakable until Cathy, feeling the pressure of social convention, suppresses her feelings and marries Edgar Linton, a man of means who befits her stature. Heathcliff vows to win her back.

The lives and loves of three young working class women, set in the pubs, terraced houses and factories of Battersea, South London.

A murderer is examined by psychiatrist John Frame, who is surprised to find the criminal knows many details of his private life.