Iris

Two best friends, Kim Hyun-jun and Jin Sa-woo, are recruited by a top-secret organization known as NSS, tasked with protecting South Korea from foreign threats. As they undergo rigorous training and face dangerous missions, they must confront their own allegiances and moralities, especially when they discover that their agency is behind a conspiracy to prevent the reunification of North and South Korea. With their lives on the line and their friendship put to the test, they must choose between following their orders or standing up for what they believe is right. But as they delve deeper into the web of intrigue, they realize that there's a greater enemy at play, one that threatens to destroy everything they hold dear. Will they be able to overcome their differences and work together to save their country, or will their loyalty be their downfall? Find out in the action-packed, heart-pumping drama series, 'Iris'.

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Some TV shows that have similar genres and were produced around the same time as Iris include Fallout, The Last of Us, Shōgun, 3 Body Problem, Monarch: Legacy of Monsters, Renegade Nell.