Set on an airport bridge engulfed in dense fog, Project Silence follows the harrowing story of survivors trapped amidst a series of catastrophic collisions and explosions. Amid the chaos, experimental military dogs from a secretive "Project Silence" are accidentally unleashed, turning the survivors into prey. Cha Jung-won, a presidential aide traveling with his daughter, must navigate the dangers of both the bridge and the vicious creatures as they fight for survival. Joined by a cast of diverse and desperate individuals, this thriller combines human drama with relentless action, set against the backdrop of societal collapse and moral choices.