A group of male K-pop wannabes – including a few established stars – vie for the right to join a brand-new group and compete for chart glory. Trainees are divided into two groups. K-group (Korean) and G-group (Global). The trainees will have to compete to stay in the top spots by winning viewer votes. Those who fail to place high enough will be eliminated. But the trainees will not be alone: A group of mentors will help the trainees achieve their dream