The highly ambitious Chinese action–war thriller Operation Hadal brought together one of the largest production teams in recent years — and among them was the global stunt network Hitz International , contributing to the film’s action and fight-performance units. Directed by Dante Lam, Operation Hadal follows the elite Jiaolong “Sea Dragons” Special Forces and China’s deep-sea submarine Longjing as they confront foreign mercenaries in a high-pressure under-water mission. F