
Watching1. Who's Going First?
90m6 Kpop Girl Groups (AOA, Mamamoo, Lovelyz, Oh My Girl, (G)I-DLE, plus one secret competitor) compete in a comeback war. In this episode, the groups learn who their competition is for the first time, fight over performance order, and the secret sixth challenger is revealed.

2. The Result of the Preliminary Contest
90mAfter an inspiring start by Mamamoo and Park Bom last episode, Oh My Girl, (G)I-DLE, Lovelyz and AOA perform their hits. The shocking 66 Drop rule is announced, where a team losing twice in a row is kicked off the show. Oh My Girl gets bad news.

3. Doing Covers of One Another's Songs
90mMamamoo and AOA cover each other. A backup dancer choice raises eyebrows - and rankings, as does a surprise guest.

4. Doing Covers of One Another's Songs, Part 2
90mA Queendom quest affects the cover song competition. Two groups that did poorly last competition make desperate and surprising choices, hoping for a big payoff.

5. The Result of the Second Preliminary Contest
90mThe lead singer and lead dancer from each group collaborate and compete as units. The singers fight over who gets a duet with Hwasa.

6. Queendom Retreat
90mThe dance unit leader is chosen, and a legendary choreographer joins the unit. The voice units perform a demo. The groups become closer with each other at a retreat.

7. The Third Preliminary Round
90mThe vocal and dance units perform.

8. Fandora's Box
90mThe "Fandoras Box" challenge, where each group performs a fan-chosen song.

9. Fandora's Box, Part 2
90mThe winners of the combined Vocal Unit, Performance Unit, and Fandora contests are announced.

10. The Final Competition
90mAll the groups perform their comeback hits. A winner is announced.