Yu-hua faces a malpractice mediation. Meanwhile, Hsi must decide whether to involve police after suspecting a patient of harming animals.

The doctors try to protect an injured teenage girl who is terrified of her father. Geng-ming comes to Hsi's aid when a patient steps out of line.

Tung-yen's past resurfaces when a gangster enters the ER. As a cancer patient tries to leave to avoid costly bills, Hsi looks for a way to help him.

The staff rally to help a widow secure a life insurance claim. Chou's confidence in his research is shaken when a rival releases conflicting findings.

When a migrant worker arrives at the ER, Geng-ming notices something off about his test results. Yu-hua faces intense scrutiny at the malpractice trial.

The new head of the ER department causes problems for the staff and patients. A protest at the hospital quickly threatens to turn violent.

After a mass stabbing on a city bus, the doctors try to cope with the influx of injured patients flooding into the ER — including the perpetrator.