Enemy At The Door is a British television drama series made by London Weekend Television for ITV. The series was shown between 1978 and 1980 and dealt with the German occupation of Guernsey, one of the Channel Islands, during the Second World War. The programme generated a certain amount of criticism in Guernsey, particularly for being obviously filmed on Jersey despite being ostensibly set on Guernsey. The series also marked the TV debut of Anthony Head as a member of the island resistance. The theme music was by Wilfred Josephs.

A hard-nosed Chicago cop is sent to London to bring back an American mobster being held for extradition. Brannigan in his Irish-American way brings American law to the people of Scotland Yard but has to contend with a stuffy old London first.

The Doctor, Jamie and Zoe return to Earth and become embroiled in the schemes of Tobias Vaughn. They meet up with an old friend, Colonel (now Brigadier) Lethbridge-Stewart, and some old enemies, the Cybermen.

The adventures of The Doctor, a time-traveling humanoid alien known as a Time Lord. He explores the universe in his TARDIS, a sentient time-traveling spaceship. Its exterior appears as a blue British police box, which was a common sight in Britain in 1963 when the series first aired. Along with a succession of companions, The Doctor faces a variety of foes while working to save civilizations, help ordinary people, and right many wrongs.