Children held hostage, a negotiator targeted, and a teenager suspicious of a trap: a race against time to survive begins.

Over sixty children have been taken hostage during a school trip to the mountains. The police, media, and the public are desperate for some sign of life. When one of the buses reappears in Montpellier, the only things on board are a child's phone and a cryptic message: "Tonight, 7 p.m." Captain Talia Sorel and her elite tactical unit are called to negotiate with the kidnapper, who demands 600 million euros. Meanwhile, 13-year-old Pierre Jonquet, at a camp in the Italian Alps, grows suspicious of the situation and realizes that the children must escape before it’s too late. The countdown to their fate has begun.