Under Nineteen

It's the last mission before the live broadcast. Among the remaining trainees, only 25 will make it to the Collaboration Mission. During the Third Ranking Announcement, So Hyun has a surprising announcement regarding the dismissal of one of the trainees for misconduct. The Collaboration Mission begins, and each team and their directors put on the performance of a lifetime. Knowing it might be their last shot, everyone works hard to leave no regrets.