The TARDIS brings the Doctor & Martha to Balmoral in 1902. Here they meet Captain Harry Carruthers
- friend of the new king Edward VII. Together they head for the castle to see the king
- only to find that Balmoral Castle is gone leaving just a hole in the ground. The Doctor realises it is the work of the Judoon
- a race of ruthless intergalactic mercenary space police. While Martha & Carruthers seek answers in London the Doctor finds himself in what should be the most deserted place on Earth
- & he is not alone. With help from Arthur Conan Doyle the Doctor & his friends discover a plot to take over the world. With time running out who will fall victim to the revenge of the Judoon? Featuring the tenth Doctor & Martha as played by David Tennant & Freema Agyeman in the acclaimed hit Doctor Who series from BBC Television.