In the thrilling movie "The Legend of the Underground (2021)," follow the journey of a group of friends who stumble upon a hidden underground world filled with mystery and danger. As they uncover the secrets buried beneath the surface, they must navigate through treacherous challenges and face their deepest fears to unlock the truth behind the legend. With each twist and turn, the friends find themselves drawn deeper into a web of intrigue that will test their friendships and push them to their limits. Will they emerge victorious, or will the darkness of the underground consume them? Join the adventure and discover the legend that will leave you on the edge of your seat.