With Pamela Jefferies in a coma following her vicious attack, Banks becomes more determined to find Rothwell's killer. Convinced a vital clue is staring him in the face, he resolves to learn more about Keith Rothwell and, against orders, questions MP Martin Fleming, putting him on a collision course with rival DCI Burgess. Meanwhile, the return of Tom Rothwell to the UK presents Helen with another suspect and an opportunity to put pressure on his family.