In this penultimate episode of the second series the Docor and Rose return to modern day Earth.
The human race rejoices as the ghosts of loved ones return home in the first episode of this two part story.
But as the Doctor, Rose and Jackie investigate the Torchwood Tower, the whole of modern-day Earth threatens to fall to an almighty invasion force.
Following their appearance earlier in the series this story sees the return of the dreaded Cybermen and marks the first on-screen appearance by Torchwood.
David Tennant plays the Doctor, Billie Piper plays Rose, Camille Coduri plays Jackie Tyler and Tracy Ann Oberman plays Yvonne Hartman.
Set report: A brief report from the London filming of this episode last November can be found here.
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Doctor Who � The Army of Ghosts: airs 7.00-7.45pm BBC ONE, Saturday 1st July 2006.
The second installment, Doomsday, airs 8th July 7.00-7.45pm