It's only after time passes that seemingly minor moments in life start taking on greater meaning. Yun-wan gets his way -- and orders Doldam's closure.

Teacher Kim takes the staff to Seoul. Yun-wan won't let his old rival have the spotlight. Bu Yong-ju is hurt but stands by romance and his principles.

During his trip to the main hospital, Teacher Kim leaves an impression — especially on three young doctors who find themselves in his hospital lobby.

Teacher Kim shocks Seo U-jin with his unconventional approach to saving a high-ranking official, and bans Cha Eun-jae from assisting his surgeries.

New doctors get a taste of their first Friday at Doldam Hospital. U-jin refuses to treat a patient who triggers his childhood trauma.

Even in her final moments, a paramedic helps save another's life. U-jin shows Eun-jae his way of resetting the mind from worries.

Bae Mun-jeong comes clean to U-jin about the connection between their families. Teacher Kim secures a safe future for Doldam Hospital.

A fire approaches as if it would devour Doldam Hospital at any moment. Only after evacuating all the patients do the staff realise Teacher Kim was gone.

As the patient's lung condition deteriorates due to tuberculosis, Teacher Kim opens the trauma centre operating room for Ri Bok-young's surgery.

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.

Doldam Hospital receives news of a second collapse, but the place is still full of injured people. Teacher Kim leaves everything and heads to the scene.

People injured from a forest fire rush into Doldam Hospital. Yet, the trauma centre is empty due to the staff staging a boycott against Dong-ju.

Doldam Hospital hires new personnel. The people of Doldam, who thought Teacher Kim would be the new head of the trauma centre, hold an emergency meeting.

Patients injured in a residential fire are rushed into the emergency room. Seo U-jin treats the suspected arsonist despite Jang Dong-hwa's criticism.

Wounded soldiers are rushed to Doldam Hospital. A-reum is left alone to tend to the emergency room when rogue patients suddenly cause a scene.

When an old building collapses resulting in several casualties, a disaster medical support team is dispatched to the site.

Eun-jae performs emergency surgery on a non-trauma patient while she must join another surgery for a patient with multiple traumas.

The medical staff of Doldam Hospital fly out in a helicopter to a ship lost out at sea on behalf of Teacher Kim, who is absent on vacation.

Jin-man fails to find the culprit who broke into the director's office. His reputation is further ruined as incidents from his past become known.

Gang Dong-ju returns to Doldam Hospital, with his unconventional proposals causing a stir in the trauma centre.

Cha Jin-man hates that Teacher Kim's methods are deeply rooted into Doldam Hospital and takes everyone except Lee Seon-ung and Dong-hwa to the trauma centre.

Go Gyeong-suk does not give up the legal battle over her son's death. She proposes a secret deal to bring down Jin-man, but Teacher Kim opposes to it.

A large audience waits outside the operating room -- and not everyone wants the team to prevail. A shifty reporter starts lurking around Doldam.

Yun-wan makes sure that old wounds don't lie dormant. The furtive reporter keeps snooping around. Dong-ju confronts Teacher Kim about the past.