"Journalist David Wallace is killed when he tries to find out the identity of an arms dealer known as the Wolf, Danny Pearson’s SAS unit is also trying to stop the Wolf selling arms to the Taliban. When they get close the Wolf disappears forever, or so they thought… Several years later, David Wallace’s daughter finds a photo of Wolf and pictures of Danny’s unit, along with a notebook in her father’s things. When she picks up where her father left off, she puts herself and Danny’s unit in danger…"