Round 4 begins and unlike previous missions, they must prepare two performances; one for vocals and one for dance. If they don't get enough &BALLs in this round, the trainees will not be able advance to the final round. The trainees go through practice, interim evaluations and after performing, they discover whether they can completely fill the &RING. At the end, they find out how many members will be in the final lineup. There is an announcement about how the debut group will be decided and a surprise final episode is to be aired live while voting begins.