Facing the conflict caused by greed, the characters who were originally scattered will gather together again: Cha Hyun-soo (played by Song Kang) wakes up and finds that he has become a monster; Byun Sang-wook (played by Lee Jin-wook) whose body is occupied by Zheng Yiming; Seo Yi Kyung (played by Lee Shi-hyun) became half-human and half-monster; Lee Eun-hyuk (played by Lee Dae-hyun) emerged from the violently shaking monster cocoon; Lee Eun-you (played by Ko Min-seo) persevered and continued to search for his brother Eun-hyuk;Private Park Chan-young (played by Jung Jin-young) returns to the field; Sergeant Tak In-hwan (played by Yoo Oh-sung) still hides the fact that he has symptoms of monster transformation; Dr. Im (played by Oh Jung-se) has shown unusual interest in monster transformation; Kim Young-hoo JungA soldier (played by Kim Moo-yeol) meets new survivors on Yuldo Island; and a girl (played by Kim Seil-ah) who has the ability to turn other people into monsters appears.