A disgraced crown prince in medieval Korea must outsmart a power-hungry rival clan and battle a zombie outbreak before it wipes out the country in Kingdom, a genuinely thrilling new period drama from Netflix.

It's based on a popular South Korean webcomic, Kingdom of the Gods by Kim Eun-hee, who also adapted it for television.

The series is set in Korea's Joeson period, a medieval dynasty that lasted some 500 years (1392-1897).

The current king has been ill with smallpox (supposedly) and confined to his palace, with only his physicians, royal guards, and young pregnant wife, Queen Cho (Kim Hye-jun), allowed to see him.

Not even the king's only son and heir, Crown Prince Lee Chang (Ju Ji-hoon) has seen his father in the last 10 days, and there are rumors that the king has died, with all the civil unrest that entails.

We learn from the opening credits and pilot that the king is being kept technically alive by artificial means—in this case a "resurrection plant" brought by the visiting physician, Lee Seung-Hui, that transforms the king into a flesh-craving undead beast.

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