Two CIA operatives, and former lovers, reunite at idyllic Carmel-by-the-Sea to re-examine a mission six years ago in Vienna where a fellow agent might have been compromised.

Good policing doesn't necessarily mean doing everything by the book. But as the business of crime in London turns to favour the Albanians and Turks, how does a "good" policeman survive?

Tells the story of London being torn apart by the turbulent power struggles of its international gangs and the sudden power vacuum that's created when the head of London's most powerful crime family is assassinated.

Big Nick is back on the hunt in Europe and closing in on Donnie, who is embroiled in the treacherous world of diamond thieves and the infamous Panther mafia, as they plot a massive heist of the world's largest diamond exchange.

When intelligence agent Kathryn Woodhouse is suspected of betraying the nation, her husband - also a legendary agent - faces the ultimate test of whether to be loyal to his marriage, or his country.