E1 - Episode 1

Aired: August 29, 2019

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.

E2 - Episode 2

Aired: September 05, 2019

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.

E3 - Episode 3

Aired: September 12, 2019

Mamamoo and AOA cover each other. A backup dancer choice raises eyebrows - and rankings, as does a surprise guest.

E4 - Episode 4

Aired: September 19, 2019

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.

E5 - Episode 5

Aired: September 26, 2019

The lead singer and lead dancer from each group collaborate and compete as units. The singers fight over who gets a duet with Hwasa.

E6 - Episode 6

Aired: October 03, 2019

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.

E7 - Episode 7

Aired: October 10, 2019

The vocal and dance units perform.

E8 - Episode 8

Aired: October 17, 2019

The "Fandoras Box" challenge, where each group performs a fan-chosen song.

E9 - Episode 9

Aired: October 24, 2019

The winners of the combined Vocal Unit, Performance Unit, and Fandora contests are announced.

E10 - Episode 10

Aired: October 31, 2019

All the groups perform their comeback hits. A winner is announced.