Picking up a distress call from the edge of the known universe, the Doctor and Sarah Jane find themselves on Zeta Minor where a geological team has run afoul of some strange goings on...

Jane Lapotaire and Joss Ackland star in this adaptation of Rudolph Besier's play. Elizabeth Barrett is kept a virtual prisoner by her father. Then the poet Robert Browning bursts into her life.

A race of space vampires arrives in London and infects the populace, commencing an apocalyptic descent into chaos.