A terrible explosion occurs on one of the busiest streets in Istanbul, killing 95 people. A new terrorist organization is responsible of the terrorist act. "Labyrinth" is the code name for the operation of the Turkish secret services in order to prevent more devastating attack, undertaken in order to discharge the chaos in the only democratic Muslim country in the region, as well as to upset the delicate balance of power in the Middle East. After the first attack Turkey becomes a field of fighting terrorists and intelligence officers in Turkey, Britain and the United States. This is the story of a small group of Turkish intelligence officers who are trying to prevent an attempt of a terrorist group to carry out an insidious plan to organize the second explosion in Turkey. A young but experienced commander named Fikret leads a group having behind nothing but a difficult career of an officer and his colleague Reyhan - one of the best intelligence officers and, besides, the mother trying to find a middle ground between education of her four-year daughter and career of the officer. Despite the outward indifference of Fikret, their common struggle and harsh experience of working together bring them closer.