Due to sudden deteriorating weather conditions, visibility on the Airport Bridge is severely impaired, leaving people stranded and at risk of the bridge collapsing due to a series of chain collisions and explosions. Amidst the chaos, the canine subjects "Echo" from the military experiment "Project Silence," who were being transported in secret, break free, and all human survivors become targets of relentless attacks.
as Cha Jeong-won
as Jo Park
as Doctor Yang
as Byeong-hak
as Soon-ok
as Jeong Hyeon-baek
as Sim Mi-ran
as Sim Yoo-ra
as Cha Kyeong-min
as Captain Kang
as Defense Minister
as Chief Secretary
as Bus Driver
as Deputy Intelligence Commander
as BJ
as Kyung-min's Mother
as Official
as Official
as Special Commander
as Staff Sergeant Ahn
as Control Room Staff
as Control Room Staff
as Lieutenant Lee
as Adultery Couple
as Adultery Couple
as Backpack Couple
as Backpack Couple
as Chief of the National Intelligence Service
