Series 1: Christopher Eccleston's Doctor is wise and funny, cheeky and brave. An alien and a loner (it's difficult keeping up with friends when your day job involves flitting through time and space), his detached logic gives him a vital edge when the world's in danger. But when it comes to human relationships, he can be found wanting. That's why he needs new assistant Rose. Rose (Billie Piper) is a shop-girl from the present day. From the moment they meet, the Doctor and Rose are soul mates. They understand and complement each other. As they travel together through time, encountering new adversaries, the Doctor shows her things beyond imagination. She starts out as an innocent, unfettered by worldly concerns. But she ends up an adventurer who, by the end of the series, can never go home again...

Series 2: The complete second series featuring David Tennant as the tenth 'regenerated' Doctor Who. In 'The Christmas Invasion' Christmas trees and seasonal Santa Claus impersonators begin wreaking havoc on the residents of London. Meanwhile the TARDIS lands on Earth with a new Doctor aboard. The Doctor is not yet fully recovered from regeneration. An invasion of the planet threatens mankind and there's only the Prime Minister to battle it out.

Series 3: The third series of Doctor Who is full of new thrills, new laughs, new heartbreak and some terrifying new monsters. From the moment the Doctor walks into the life of medical student Martha Jones he changes it forever.

Series 4: David Tennant is back in his role as the Doctor in the fourth series of the hit sci-fi show! Award-winning comedienne Catherine Tate returns as the Doctor's new companion, reviving her role as Donna Noble. Also on hand to help the Doctor are some familiar faces as he has the New Dalek Empire to stop!