Jubilee is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who.
The Sixth Doctor and Evelyn, having followed a weird transmission, arrives in London in 2003, but they quickly notice that the city appears strange and looks unusually dirty and dusty.
The Doctor is then suddenly stricken by a weird sense of deja vu, and realizes that he and Evelyn have landed in an alternate timeline.
As the Doctor and Evelyn try to restore the original timeline, they discover that they are being worshipped as heroes of the Dalek war, a fact which worries the Doctor, as he suddenly has faint and rather out-of-place memories of having fought in that war, and perhaps even more disturbingly, he can't recall if he ever managed to escape from it.
"[1] The story was adapted for television, in the revived series episode, Dalek, starring Christopher Eccleston as the Ninth Doctor.