X-Man(2003)

X-Man is a South Korean variety show where celebrity guests compete in teams across a series of contests. Unknown to everyone else, one participant is secretly designated the X-Man, tasked with sabotaging their own team to ensure defeat. Throughout the episode, the X-Man employs cunning tactics and deception to throw challenges while avoiding suspicion. As the competition concludes, the remaining guests must work together to unmask the saboteur's identity before time runs out. The format combines strategy, humor, and social deduction as celebrities navigate the tension between winning and identifying the hidden troublemaker among them.