As a story, it’s not bad. As fanfic, it’s really pretty good!
Summary: Torchwood London is being systematically dismantled from the inside. When Pete Tyler goes missing, Rose, Jack, and the Doctor have to overcome their greatest weaknesses to find him – and to save their own lives. Fortunately, they have the help of a new old friend. (Alternate universe, non-canon Jack Harkness and Martha Jones.)