NCT 127: The Lost Boys - Season 1 Episode 4
Johnny talks about his trainee years. Taeyong talks about his youth, his sister, and his dog Ruby.
- Genre: Documentary
- Studio: Disney+
- Keyword: k-pop, music documentary, music
- Cast: Taeil, Johnny Suh, Taeyong, Yuta, Doyoung, Jaehyun