A look at the complex investigations of the law enforcement organisation, with a seamless blend of first person interviews, archival footage and vivid dramatisations.
EPISODE 1
The Serpent
A serial killer known as The Serpent, Charles Sobhraj spent years evading the police by constantly changing his identity.
EPISODE 2
Body Double
After stealing millions of dollars from clients and colleagues, Albert Walker flees Canada, taking his teenage daughter with him.
EPISODE 3
Tracks of a Stalker
Law enforcement agencies in Great Britain, France and Portugal look for a man who travels throughout Europe killing women on trains.
EPISODE 4
One Way Ticket
In the wake of the arrival of more that 300 illegal Chinese immigrants arrive in New York, investigators spend seven years searching for a human smuggling organisation known as "Snakeheads."
EPISODE 5
Missing Link
Police find a bunker with weapons, terrorist organisation names, and files on potential kidnap victims after a repair shop explodes in Managua, Nicaragua.
EPISODE 6
Rising Sun
In search of stolen artwork, Mireille Ballestrazzi of the French National Police tracks thieves around the world.
Michael Shapiro
Edward Flaherty
Tom Naughton
Michael Eldridge