Due to its poor condition, the hospital ship is not a preferred workplace by any doctors. However, Hyun, Jae Geol, and Joon Young are appointed to work there. Meanwhile, Eun Jae is becoming a more renowned doctor.

Eun Jae's mother is treated at the hospital ship, but Eun Jae is not happy about it. When her mum goes back home without saying goodbye to Eun Jae, she suddenly collapses.

The doctors and nurses on the hospital ship fight to save a right arm. Amidst a storm in the helpless ship, Jung Ho gets into an accident. In the isolated ship, Eun Jae decides to perform surgery. And Eun Jae lies and says that the reason why she came on the hospital ship is because she killed one of her patients. However, it turns out that one of her seniors made a mistake mid-surgery.

Eun Jae insists that she performs surgery instead of making the patient wait. She impresses people once again with her skills. However, her reputation becomes tarnished when people find out about the malpractice.

The doctors and nurses on the hospital ship fight to save a right arm. Amidst a storm in the helpless ship, Jung Ho gets into an accident. In the isolated ship, Eun Jae decides to perform surgery.

Eun Jae lies and says that the reason why she came on the hospital ship is because she killed one of her patients. However, it turns out that one of her seniors made a mistake. Eun Jae decides to tell the patient's family the truth.