The classic Doctor Who story, abridged by James Goss from his original novelisation of the 1979 episode by Douglas Adams and David Fisher. Meet the new Doctor Who classics. The key to Earth's destruction lies buried in its past. Visiting Paris in 1979, the Doctor and Romana's hopes for a holiday are soon shattered by armed thugs, a suave and dangerous Count, a plot to steal the Mona Lisa and a world-threatening experiment with time. Teaming up with a British detective, the Time Lords discover that a ruthless alien plot hatched in Earth's pre-history has reached its final stage.