At the request of his friend and colleague Leila, a British intelligence agent, Daniel Marchant took part in the London Marathon. Leila hinted to him that the participants of the race, and among them the American ambassador, were in danger! An hour after the start, Daniel noticed the strange behavior of one of the runners and very soon found out that the guy had been blackmailed into wearing a suicide vest. With the assistance of the intelligence services, Marchant managed to prevent a terrorist attack. The suicide bomber is killed, but Daniel is suspected by intelligence, he is accused of aiding criminals. The evidence is growing: someone is framing him again and again. Marchant realizes that a hunt has begun for him. Hiding from the CIA, he flees to India, where he discovers another side of the fight against terrorism...