Yoon A-reum protects a patient's rape kit from falling into wrong hands. Min-guk finally brings up the bus accident from 11 years ago to Teacher Kim.

The trauma centre loses a patient and receives another patient in critical condition. Meanwhile, a child visits Teacher Kim at Doldam Hospital.

Patients rush into the emergency room while the staff tends to surgeries. Doldam Hospital falls into chaos as the gunman's identity is revealed.