Publisher's Summary

Captain Jack calls in Martha Jones (Freema Aygeman – Doctor Who) to investigate mysterious deaths. When the trail leads to a sinister medical testing centre, Martha must go undercover. But has Torchwood under-estimated how far the testing centre will go to find medical breakthroughs? How safe are any of the Torchwood team? Alan Dale (The OC, Ugly Betty, 24, Lost) also guest-stars as Professor Aaron Copley, who runs a sinister medical research centre.