Following a tip-off, journalist Nick Davies investigates reports of endemic phone hacking at Rupert Murdoch's News of the World.

2002: DCS Dave Cook takes on the most-investigated unsolved murder in the Metropolitan Police's history and uncovers worrying links to Fleet Street.

Nick fights to protect his editor and his newspaper from a Fleet Street backlash as he forms new alliances and comes into conflict with Scotland Yard.

DCS Dave Cook is forced to work with an unlikely ally when he is drawn back into the Daniel Morgan investigation after a new witness comes forward.

Nick teams up with the New York Times as Andy Coulson lands in Downing Street, and Dave Cook is challenged in court over the Morgan investigation.

Dave finds strength from a surprising new ally, and Nick is drawn back into the fight and discovers new information that could change things completely.

Nick, Dave and their allies face troubling new threats as the hacking scandal explodes and Rupert Murdoch faces Parliament.