Doctor: The Thirteenth and Fourteenth Doctor Companions: Dani (Leaves), Captain Jack Harkness(Part 2 onwards), Martha Jones (Parts 2 and 3 only), Mickey Smith(Parts 2 and 3 only), Rose Tyler (Reference only) Enemies: The Cybermen, The Daleks, The Master Key plot points: Part 1: The Doctor and Dani land on mid twenty first century Earth They encounter the Cybermen The Doctor defeats the Cybermen but not before dicovering a single Dalek The Doctor and Dani return to the TARDIS where the Doctor begins to track the Dalek's point of origin. Part 2: The Doctor finds where the Dalek came from and can't believe it- a ressurected Gallifrey! Him and Dani encounter the time lord's new president- The Master. The Master imprisons The Doctor and Dani and torments the Doctor with the knowledge that hi