The drama is an action-thriller genre surrounding the 'Protector's, who catch criminals who avoid being caught by the law-system in place. Kim Young Kwang will be playing a prosecutor with more personal interest than a sense of justice, Jang Do Han, while Lee Si Young will be playing the role of Jo Soo Ji, a woman who quits her job as a police officer after her daughter's death. 

SHINee's Key will be playing genius hacker Gong Kyung Soo, a mood maker in the 'Protector's. You can watch the action unfold on 'Protector' once it premieres, after currently airing drama 'Rebel: The Thief Who Stole People'. 

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