런닝맨 is a popular South Korean variety show that first aired in 2010. The program features a cast of regular members, including 유재석, 김종국, and 하하, who participate in various games and challenges. Each episode typically involves a theme, with the cast divided into teams to compete against each other. The show is known for its humor, engaging content, and unique missions, often incorporating elements of adventure and teamwork. 런닝맨 has gained a large following both in South Korea and internationally, contributing to the global popularity of Korean entertainment.