S1E4 Episode #1.4
After revealing everything he knows to Chul-min, Kang-woo agrees to help save Su-in. But when the plan goes awry, lives are put at risk.
When unidentified parasites violently take over human hosts and gain power, humanity must rise to combat the growing threat.
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After revealing everything he knows to Chul-min, Kang-woo agrees to help save Su-in. But when the plan goes awry, lives are put at risk.
Su-in meets with Seol Kyung-hee, who requests an alliance. But the parasites' ploy for power goes into full effect — and it's up to Heidi to stop them.
Looking for his sister, Seol Kang-woo investigates Saejin Church, where he finds Su-in. But he soon encounters trouble — and the two fight to escape.
Despite being on the run, Su-in tries to warn Jun-kyung. But as Team Grey's raid plays out, Su-in and Kang-woo realize it's all part of a bigger plan.
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