東方神起的瑜鹵允浩與沈昌珉主持，由6組K－POP大勢男團參賽競爭：BTOB、iKON、SF9、THE BOYZ、Stray Kids、ATEEZ。此節目是《Road to Kingdom》的後續節目。

Who is the best K-POP performer? Let's throw away all our titles and compete solely through our performances! Here are six K-POP boy groups: the group that ensures your entertainment "BtoB," the idol of the nation "iKON," one-of-a-kind perfect performing group "SF9," group with a strong performance, "THE BOYZ," rising on the global market, "Stray Kids," and a global hot rookie "ATEEZ," who are different in music style and even their debut years. They are gathered here to compete on stage and only on stage. After the missions of recreating their representative songs, covering other groups' songs, and bringing secret weapons, which group will become a legendary group? Bet everything you have and compete to write a new K-POP history! The performance survival show of global K-POP idols.

שמעתם פעם את צמד המילים "מלחמת ענקים"? הגיע הזמן לראות אחת מקרוב בתוכנית הריאליטי החדשה "קינגדום: מלחמה אגדית". בתוכנית משתתפות שש להקות אהובות מהשורה הראשונה

(Ateez, THE BOYZ, iKon, BTOB, Stray Kids, sf9). הלהקות הולכות להילחם ראש בראש ולהוכיח אחת ולתמיד מי הלהקה המובילה.

2021년 전설이 될 아이돌은 누구인가? 글로벌 K-POP 아이돌들의 퍼포먼스 대격돌. 더 강력하게 맞서라! 모든 것을 걸어라! 새로운 역사가 쓰여진다!

A sequência de "Road to Kingdom" da Mnet. Um show de competição de sobrevivência apresentando grupos de meninos de K-pop e seu potencial de atuação.

A escalação final para Kingdom: The Boyz, Stray Kids, Ateez, BTOB, iKON & SF9.