The episode begins with the O.O.O Mission. The girls are grouped into three different teams; two containing nine members and third containing eight. The girls arrange their parts and practice their performance. After practice, they perform their performances to the mentors. In between performances, the girls are shown video messages and performances by viewers of the show from around the world. The winners of the O.O.O Mission were determined by the viewers of the show; the contestant of each team that accumulated the most number of YouTube likes on their respective video within 24 hours would obtain a benefit of 90,000 (nine-member) or 80,000 points (eight-member).