6 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.
After 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.
A Queendom quest affects the cover song competition. Two groups that did poorly last competition make desperate and surprising choices, hoping for a big payoff.
The 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.
The theme for the third match is revealed. There will be two rounds: the Position Unit Battle; and each group will choose representatives for a Vocal Unit or Dance Unit. These representatives will be gathered together for a special Queendom Workshop.
The new teams work hard on their chemistry and come up with ideas for their special collaborative performance in the Queendom Workshop. Later, the audience gathers to watch the Vocal Unit Battles.
