Starring: Colin Baker, Bonnie Langford, Ruth Madeley

The Doctor, Mel and Hebe are reunited - but Purity's temporal meddling has altered history as they know it. To make matters worse, whatever is left of the being once known as Patricia McBride is still intent on fulfilling her grand design for humanity...

Nick and Benji present... The Chat: Holiday Report. Review: The War Master: Self Defence. Behind-the-scenes: Doctor Who: Purity Unbound, The Diary of River Song: The Orphan Quartet, Timeslip: The Time of the Tipping Point.

Starring: Spencer Banks, Cheryl Burfield, Sarah Sutton

The time travellers find themselves in an alternate world 30 years in the future, but they soon discover that the global governments are preparing for a catastrophic environmental disaster that will alter the planet forever...

Starring: Alex Kingston

An old enemy hides beyond the universe, a desolate Cornish inn confronts the truth, a grieving mother holds onto a deadly memento of war, and the Earth has been invaded. Professor River Song must solve all this while dealing with a loss of her own.

Starring: Colin Baker

Back on Earth, the Doctor finds a clue in the search for the origins of the degeneration weapon. In his Sixth body, he meets Jackie Tyler and Lady Christina de Souza - thrown together by fate, or something more?

Starring: Colin Baker

Back on Earth, the Doctor finds a clue in the search for the origins of the degeneration weapon. In his Sixth body, he meets Jackie Tyler and Lady Christina de Souza - thrown together by fate, or something more?

Nick and Benji present... The Chat: 'cue Nick and Benji'. Behind-the-scenes and Drama Tease: Torchwood - Sigil.

Starring: Murray Melvin

Sam has been haunted for years by the Sigil. She's drawn the pattern since she was a child, she has a tattoo of it, she sells prints of it. Then one day, she sees it on a statue in the window of Bilis Manger's shop...

Starring: Christopher Eccleston

The Doctor crosses paths with many travellers - some at the start of their journey, some well on their way. Sometimes the journey is more interesting, and more dangerous, than the destination...

Nick and Benji present... The Chat: is two company? Good Review Guide: Out of Time 3 - Wink. Behind-the-scenes and Drama Tease: Doctor Who: Once and Future 4 - Two's Company.

Starring: Alex Kingston, Camille Coduri

What are the Krotons? Why are they running a health spa? Jackie Tyler and River Song investigate, because everyone needs a direction point.