The series stars David Tennant as the Doctor. In the Christmas special he is joined by Catherine Tate as Donna Noble. The series also introduces Freema Agyeman as the Doctor's new companion Martha Jones. John Barrowman also reprises his role as Captain Jack Harkness in the final three episodes which serve as the finale. The series is connected by a loose story arc consisting of the recurring phrase "Vote Saxon".

Season 3 Episode 1 - Smith and Jones

Trainee doctor Martha Jones has her hands full balancing her medical studies with placating her demanding family. So the last thing she needs is to find that the hospital where she works has been transported to the moon, where it's invaded by an overbearing alien police force. There she encounters a patient called John Smith, who seems curiously at ease with the situation… Air Date : 1st-Apr-2007

Season 3 Episode 1 - Smith and Jones

Trainee doctor Martha Jones has her hands full balancing her medical studies with placating her demanding family. So the last thing she needs is to find that the hospital where she works has been transported to the moon, where it's invaded by an overbearing alien police force. There she encounters a patient called John Smith, who seems curiously at ease with the situation… Air Date : 1st-Apr-2007  Read More

Season 3 Episode 2 - The Shakespeare Code

Martha takes her first trip in the Tardis, all the way back to Elizabethan England. She and the Doctor hear of a series of bizarre deaths and discover that playwright William Shakespeare is being controlled by dangerous witch-like creatures. It seems the time-travelling duo must defeat ancient forces to prevent history from being rewritten. Air Date : 7th-Apr-2007  Read More

Season 3 Episode 3 - Gridlock

The Doctor takes Martha to New Earth, in the far future, only to find that an entire city has become a deadly trap. Air Date : 14th-Apr-2007  Read More

Season 3 Episode 4 - Daleks in Manhattan (1)

The Doctor investigates disappearances in New York at the height of the depression in the 1930s. Nefarious Pig Men linger in the sewers and the Daleks prepare an audacious plan at the top of the Empire State Building Air Date : 21st-Apr-2007  Read More

Season 3 Episode 5 - Evolution of the Daleks (2)

The newly-created Dalek-human hybrid, and the other three members of the Cult of Skaro launch an attack on Hooverville, along with their Pig Slaves. The Doctor, Martha, and Frank manage to escape, but discover that the Daleks' plan involving the Empire State Building... Air Date : 28th-Apr-2007  Read More

Season 3 Episode 6 - The Lazarus Experiment

Martha has to save her family from the lunatic schemes of the monstrous Professor Lazarus. Air Date : 5th-May-2007  Read More

Season 3 Episode 7 - 42

In a far-flung galaxy, saboteurs are at work, and crew members are being possessed. The TARDIS crew find themselves in the 42nd century on a spaceship, SS Pentallian, slowly being pulled into a sun, and must find a way to survive Air Date : 19th-May-2007  Read More

Season 3 Episode 8 - Human Nature (1)

England, 1913. A schoolteacher called John Smith dreams of adventures in time and space. The Doctor, along with Martha, heads to a boarding school, but what he finds is far from ordinary... Air Date : 26th-May-2007  Read More

Season 3 Episode 9 - The Family of Blood (2)

It's 1913, and war comes to England early as the terrifying Family hunt for the Doctor. Air Date : 2nd-Jun-2007  Read More

Season 3 Episode 10 - Blink

Only the Doctor can stop the Weeping Angels, but he's lost in time. Air Date : 9th-Jun-2007  Read More

Season 3 Episode 11 - Utopia (1)

After being brought back to life in The Parting of the Ways, Captain Jack Harkness was just left on the Gamestation by the Doctor and Rose. In this episode, Captain Jack Harkness storms back into the Doctor's life, and the TARDIS is thrown to the end of the universe itself. Air Date : 16th-Jun-2007  Read More

Season 3 Episode 12 - The Sound of Drums (2)

Harry Saxon becomes Prime Minister and his reign of terror begins – but that's only the start of his ambitions, as he announces mankind's first contact with an alien race, the Toclafane. An audacious plan spanning the whole of time and space begins to close around the Earth, in the penultimate episode of Russell T Davies's Doctor Who. Air Date : 23rd-Jun-2007  Read More

Season 3 Episode 13 - Last of the Time Lords (3)

One year has passed since the events of "The Sound of Drums." The Earth has been conquered and its population enslaved, the Doctor is the Master's prisoner, and the warships of a new Time Lord Empire rise from the ashes. The fate of the world is in Martha Jones' hands. Air Date : 30th-Jun-2007  Read More