Torchwood Season 1 Episode 4
A Ianto themed episode
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.