Saturday 14th April at 6:40pm (BBC1)
For their next adventure The Doctor takes Martha to the planet New Earth, far, far into the future. But when they arrive, they discover that the streets are being ruled by the sinister Pharamacists.
Together, they must uncover the dark secret that lurks deep in the heart of the city. And to do it, they have no choice but to brave the mysterious Motorway in the company of Brannigan, a feline figure played by comic actor Ardal O'Hanlon.
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