Jewel in the Palace - Season 1 Episode 51
Overview: The Queen is shocked to find out that her own son, KyungWonDaeGun is suffering from smallpox. The only thing Queen can do to help her son is to hold a sacrifice ceremony wishing her son well. KyungWonDaeGun’s health takes a turn for the worse and Queen calls for JangGeum. JangGeum sincerely delivers treatment for KyungWonDaeGun.