What begins as an international basketball match in a small Chinese city quickly spirals into chaos. When a mysterious infection erupts within the stadium, turning spectators into ravenous, blue-lit monstrosities, thousands are trapped inside, and panic ensues.
Wang Wei, an ordinary man caught in the middle of the outbreak, must navigate the treacherous confines of the locked-down arena to survive. But as the infection spreads beyond the stadium into the city, the military imposes an ironclad quarantine, leaving no way out. Joined by a handful of survivors—including a brilliant engineer and a fearless volunteer—Wang Wei discovers the infection is no natural plague but the horrifying result of a secret experiment gone wrong.
As the city descends into chaos and the infected evolve with terrifying intelligence, survival becomes a race against time. Can they escape the ground zero of the outbreak before it consumes them all? Or will they fall prey to the rising tide of the Blue Plague?