第4話: ヒロトとビルドダイバーズは、最初は拒絶された後、聖獣クアドーンと遭遇する
2020年4月30日 放送
Hiroto and the Build Divers have finally met with the sacred beast Cuadorn, only to be rejected. But after they unflinchingly convey their feelings towards Eldora, Cuadorn opens its silent mouth. As it begins to speak, it tells them of the lightning from the moon that struck Eldora, and of Alus, the one who unleashed it. (Source: Official GundamInfo YouTube Description)