Small-town girl Deokee is abandoned by university professor Hak-kyu after a lusty affair, and vengefully approaches him 8 years later when he starts suffering from blindness.

While a zombie virus breaks out in South Korea, passengers struggle to survive on the train from Seoul to Busan.

Followed by Ma Seok-do, who heads to a foreign country to extradite a suspect. However, he discovers additional murder cases and learns about a killer who had committed crimes against tourists for many years.

Tragedy, betrayal and a mysterious discovery fuel a woman's vengeance for the loss of her tribe and family in this special episode of "Kingdom."