One by one, in cities across America, people of all ages are taken from their homes, their cars, their lives. But these aren't random kidnappings. They're crimes of passion, planned and researched several months in advance, then executed with a singular objective in mind. Revenge.

Ariane Walker is one of the victims, dragged from her apartment with few clues to follow. The police said there's little they can do for her, but

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Hidden among the crates in a recently discovered World War II bunker are documents stamped with an elaborate black swan, the insignia of the murdered King Ludwig II. According to legend, Ludwig stockpiled a massive treasure in the years before his death, a cache of gold and jewels that would finance the construction of the largest castle of all time. But in the years since his death, no one has found any evidence that Ludwig had hidden anything. Until...

A lab is destroyed. An explosion in Stockholm claims the lives of an elite collection of scientists. Evidence suggests the blast was designed to eliminate all traces of their research. It's up to Interpol director Nick Dial to uncover the truth about the lab and the attack. A scientist on the run. When Dr Mattias Sahlberg learns of the incident, he knows his life is at risk. He turns to the only men he can trust: ex-Special Forces operatives Jonathon...

On a Danish shore, a Vatican priest is found - hanging on a cross. Within days, the same crime is repeated ... this time in Asia and Africa. Meanwhile, deep in the legendary Catacombs under Orvieto, Italy, an archaeologist unearths a scroll dating back two thousand years, revealing secrets that could rock the foundations of Christianity. Its discovery makes him the most wanted criminal in all of Europe. But his most dangerous enemies operate outside...