D-Day S1, E4

A natural disaster strikes the city of Seoul. The whole city becomes paralyzed. Doctors and emergency personnel struggle to save the people.

Cast:Kim Young-kwang , Jung So-Min , Sung-yeol Lee , Kim Hye-Eun , Joo-Hee Yoon , Go Gyu-pil , Jeong-hwa Kim , Ha Seok-jin , Lee Kyung-young , Kim Jae-hwa , Kim Sang-Ho , Cha In-pyo , Park Seung-joon