Watch NCT 127: The Lost Boys

Johnny, NCT 127's longest training member, talks about those who helped him endure his eight years of training, through an unscripted improv play. Taeyong discusses how he grew into the role of NCT 127's leader. He speaks about his sister and his dog Ruby's support, through a children's play.

Jaehyun shows his candid side via stand-up comedy, sharing his unusual life of traveling back and forth from the US to Korea. Doyoung talks about overcoming his dark past through singing. Jungwoo shares why laughter is important through his clown performance, and tells a story about his mother.

Yuta wants to fly freely like a butterfly. He reveals his aspirations and affection for his bandmates, who helped him adapt to unfamiliarity. Taeil, who believes he got "lucky" ever since he was given a four-leaf clover, tells the story of his past and about how his parents gave him a "lucky" life.

Through a "meta-play," Mark, once a diligent student living a transient life, shows how he became a K-pop idol. Haechan talks about the challenges of transitioning into adulthood and his special relationship with his mother, who helped him nurture his dream.