Ianto Jones hides a very big secret at Torchwood - his half-converted girlfriend from the Canary Wharf Battle - down in the basement. He is quick to hire a Japanese doctor who believes he can "cure" her. But things soon go wrong, and the Cyberwoman's destructive powers are released to the whole of Torchwood. Upgrading is compulsary.
Elenco: Eve Myles , John Barrowman , Naoko Mori , Gareth David-Lloyd , Bill Pullman , Bill Pullmann , Kai Owen , Alexa Havins , Burn Gorman , Lauren Ambrose , Mekhi Phifer .