Hostage negotiation is one of the world’s toughest and most dangerous jobs, requiring incredible skills and bravery in the face of often-lethal danger.

With exclusive access, we dive deep into the lives of top-level negotiators, from renowned young female negotiator Ummu Kalthum to ex-FBI Chief Negotiator Gary Noesner, to learn the secrets of the art of negotiation.

Dramatic recreations bring to life some of the world's most dangerous hostage crises, from negotiating with Boko Haram terrorists and an American cop gone rogue, to a Manila mall hostage crisis and a ruthless Mexican drug cartel.