All members in the clip are seen participating in various games and challenges. Also, in the process of doing so, they speculate one another of holding the master key to cause a lot of laughter.
The cast includes Henry, EXO's Baekhyun, Lee Soo Geun, ASTRO's Cha Eun Woo, Wanna One's Kang Daniel and Ong Seong Wu, B1A4's Jinyoung, Jun Hyun Moo, Kim Jong Min, Jo Bo Ah, Park Sung Kwang, and Kang Han Na. 'Master Key' will be airing its first episode on October 14, stay tuned!
Check out the hilarious teaser clip above!