After crashing in 2020 London, the TARDIS crew has found the future of the universe altered and the human race doomed.
As the Doctor tries desperately to unravel the paradox, all roads lead back to Baker Street, and the greatest test of all...
CROSSED LINES BY MATT FITTON
GET ANDY BY LISA McMULLIN
THE KEYS OF BAKER STREET BY ROY GILL
BEST YEAR EVER BY JOHN DORNEY