An early morning in October, 15 people are taken hostage from a subway train. This puts a huge hostage crisis in motion, and it changes Denmark forever.

Eric Beaumont's crisis negotiator team is brought in to save lives and resolve the most difficult kidnap and ransom cases when no one else can.

Disguised under the shadows of a mask, a crew of desperados band together under the leadership of a criminal mastermind known only as “The Professor” to pull off the biggest heist Korea has ever seen.

The story follows the lead characters through their experiences as members of the Police Negotiation Cadre (PNC). The PNC is a volunteer unit of the Hong Kong police force specializing in negotiations with terrorist members, partakers of local violence, and individuals contemplating suicide. The whole series is dotted with both large and small cases handled by the story's heroes and heroines.

An exclusive insight into the work and recruitment of the special units of the Belgian Federal Police. Through testimonies and reconstructions, 'Under the Radar' also takes a closer look at a number of striking operations from the past.