Torchwood Four

Torchwood 4 was a branch of the Torchwood Institute. The nature of this branch and its personnel where unknown. The Torchwood Archives told of Torchwood 4 being under a golf course in Inverness. According to information passed from Torchwood Three operative Jack Harkness to new recruit Gwen Cooper, Torchwood 4, it was lost, though there was hope it would be found one day. (TW: Everything Changes)