Kingdom
킹덤 (original)
While strange rumors about their ill king grip a kingdom, the crown prince becomes their only hope against a mysterious plague overtaking the land.
Starring Ju Ji-hoon, Ryu Seung-ryong, Bae Doo-na, Bae Doona, Kim Sang-ho, Kim Sung-kyu, Jun Suk-ho, Kim Hye-jun, Park Byung-eun, Kim Tae-hun
Watch "Kingdom" on Netflix released in 2019. It's a drama and action & adventure show, and has a rating of 8.3 out of 10 from Imdb which is very high for this kind of show.