Catherine is a no-nonsense police sergeant who heads up a team of officers in a rural Yorkshire valley. When a staged kidnapping spirals out of control turning into a brutal series of crimes, Catherine finds herself involved in something significantly bigger than her rank, but unknowingly close to home.

Several months after witnessing a murder, residents of Tower Block 31 find themselves being picked off by a sniper, pitting those lucky enough to be alive into a battle for survival.

A visionary sheik believes his passion for the peaceful pastime of salmon fishing can enrich the lives of his people, and he dreams of bringing the sport to the not so fish-friendly desert. Willing to spare no expense, he instructs his representative to turn the dream into reality, an extraordinary feat that will require the involvement of Britain's leading fisheries expert who happens to think the project both absurd and unachievable. That is, until the Prime Minister's overzealous press secretary latches on to it as a 'good will' story. Now, this unlikely team will put it all on the line and embark on an upstream journey of faith and fish to prove the impossible, possible.

In mid-19th century Yorkshire, Hannah Boyle is left with the family of Matthew Thornton, the man her dying mother claims fathered her...