Episode 1Five friends whose friendship goes back to their days in med school are brought back together when a phone call interrupts each of their busy lives.
Episode 2
E2
Episode 2For the first time in 20 years, everyone's finally working under the same roof. A patient with a familiar name finds Chae Song-hwa.
Episode 3
E3
Episode 3The hospital's med students are inspired by the doctors, who each look after their patients in their own ways. Lee Ik-jun gets a welcome visitor.
Episode 4
E4
Episode 4Yang Seok-hyeong's aloofness frustrates someone on his team. Jang Yun-bok and Jang Hong-do witness a surprising side of Song-hwa outside the hospital.
Episode 5
E5
Episode 5Jang Gyeo-ul can't get one kind word out of Ahn Jeong-won, who seems especially cold to her. A difficult professor joins the cardiothoracic department.
Episode 6
E6
Episode 6Kim Jun-wan waits for a response from Lee Ik-sun, who says she needs some time. Jeong-won breaks painful news to the family of his longtime patient.
Episode 7
E7
Episode 7An unforeseen problem just before a surgery forces Jeong-won to make a tough decision. Meanwhile, Jun-wan is put on edge in the operating room.
Episode 8
E8
Episode 8Distracted by a problem in his personal life, Do Jae-hak struggles to get through the day. Meanwhile, Chu Min-ha finds herself drowning in work.
Episode 9
E9
Episode 9An urgent call sends Song-hwa rushing to the hospital to tend to a young patient. Ik-jun receives a plea from a desperate father.
Episode 10
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Episode 10Put in a stressful situation, Jae-hak looks to Jun-wan for advice on the right thing to do. Ik-jun accidentally uncovers an extraordinary secret.
Episode 11
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Episode 11Ik-jun handles a sensitive request from the troubled wife of a patient. A sudden piece of news threatens Seok-hyeong's peace.
Episode 12
E12
Episode 12As doctors and as humans, the five friends each face a maze of life's questions and decisions as they figure out their next steps.
