Doctor Who: City of Death Douglas Adams2016

The Doctor takes Romana for a holiday in Paris - a city which like a fine wine, has a bouquet all of its own. But the TARDIS takes them to 1979, a year whose vintage is soured by cracks in the fabric of time itself.

Soon the Time Lords are embroiled in an audacious alien scheme involving home-made time machines, the Mona Lisa, the resurrection of the much-feared Jagaroth race and the beginning (and quite possibly the end of all life on Earth.

But then the Doctor's holidays tend to turn out a bit like this.