Mount Jiri, one of Korea's revered peaks, has drawn visitors for centuries. Established in 1967, Jirisan National Park, the country's oldest and largest, is safeguarded by devoted rangers. Among them is the renowned Seo Yi Kang, known for her tracking skills. With her is Kang Hyun Jo, a rookie ranger with military expertise. Guided by Jo Dae Jin, the Haedong Branch Office head, this team risks their lives to protect visitors. As mysterious rumors circulate, their strengths face a challenging test in the uncharted mountain realms. (Source: MyDramaList)