The UN forces trapped inside the bubble launch an all out attack on the Efidolg forces surrounding their mothership and the abandoned laboratory base in order to take back control of the facilities and rescue any potential survivors. The Black Relic and GAUS-1 piloted by Sophie face off against the countless robots of the enemy, while Muetta retrieves her own Medusa and confronts Mirasa over the true nature of the Efidolg.