When people start to disappear, a young woman finds cryptic messages bleeding through from a mysterious stranger called the Doctor.

The earthlings exhibit some non-human characteristics when they awake. Tom Baker, Elisabeth Sladen, Ian Marter. Vira: Wendy Williams. Noah: Kenton Moore. Libri: Christopher Masters.

Mars, 2059. Bowie Base one. Last recorded message: don't drink the water. don't even touch it. not one drop... Confused? All will be revealed in The Waters of Mars, starring Lindsay Duncan as the Doctor's cleverest and most strong-minded companion yet.

Catherine Tate reprises her role as Donna Noble (previously seen in "The Runaway Bride") and joins the Doctor's side to foil an alien scheme involving weight-loss pills manufactured by Adipose Industries.

When a London bus takes a detour to an alien world, the Doctor has to join forces with the extraordinary Lady Christina de Souza. But the mysterious planet holds terrifying secrets hidden in the sand - and time is running out as the deadly Swarm gets closer. David Tennant stars in the first of four special episodes leading up to his departure from the role at Christmas. With Michelle Ryan and Lee Evans

One-off special. The Time Lord is caught in a terrifying situation when he visits one of the fixed points in time and space, the disaster that hit Bowie Base One on Mars in 2059. As he tries to come to terms with the prophecy that his present incarnation is soon to die, he starts to consider the possibility of altering the fundamental rules of time and space - with the support of strong-minded commander Adelaide. Starring David Tennant, with Lindsay Duncan and Peter O'Brien

The Doctor, Clara, Artie and Angie arrive at Hedgewick's World of Wonders, and the last thing they expect is the re-emergence of one of the Doctors oldest foes.

Turning back the clock has consequences.

As a spaceship hurtles towards the sun, the Doctor and Martha have just 42 minutes to save the day.

Part 1. The Doctor finds an unusual hiding place.

Part 2. Smith and Jones are under siege.

Capt. Jack storms back into the Doctor's life; the Tardis travels to the end of the universe.

Part 1. Harry Saxon becomes Prime Minister, but has dark ambitions.

Part 2. With The Doctor imprisoned by The Master, Martha endeavors to save the world.

Kylie Minogue joins Doctor Who to play Astrid, a waitress on a doomed spaceship that eerily resembles the Titanic. When a meteor hits, Astrid and The Doctor must protect the survivors from and prevent the whole ship from crashing to Earth.

Donna is determined to find the Doctor, even if it means braving Miss Foster and her hordes of Adipose.

Bodies are found in Victorian Yorkshire with skin that is waxy and glowing red.