Features the return of classic companion Sarah Jane Smith and K9 .
The emotional finale where the Daleks and Cybermen go to war, leading to the heartbreaking permanent separation of the Doctor and Rose. Doctor Who - Season 2
This is arguably the most famous Season 2, marking first full year as the Tenth Doctor . It is defined by his romantic and protective relationship with companion Rose Tyler (Billie Piper). Features the return of classic companion Sarah Jane