Following the stand-ins concert, Kanata, Mimori and the 77th gen understudies are asked to stand in for a guerilla concert on a planet where the entertainment ban is in full effect, prompting some jealousy from the 76th gen understudies. Meanwhile, Minami is still concerned about what she saw the other day, and acts weird around Kanata. As they make over there, Sae Miyazawa, a former 76th gen understudy, grows concerned about Megumi. As the increased security evokes debate about whether the concert should be cancelled, the ship comes under attack by the DES. Noticing Minami is struggling to stay focused, Yūko and Kanata set off to rescue her as she is overwhelmed by the enemy. As she recovers from her injuries, Minami laments that she does not want to graduate, but she does not want to hold Kanata back either. As Yūko tells Minami that she should focus on her dream above others, Kanata resolves to become stronger.
AKB0048の次のライブは完全芸能禁止の星、ツンドラスター。
DES軍との戦闘は避けられず、何が起こるかわからない強襲ライブになることが予想され、
特別措置としてアンダーの研究生が入ることになった。
彼方、美森、76期生からは恵に加え、
77期生が全員入る、という発表に不満の声を上げる76期生たち。
その様子を見ていたたかみなは……。
