Front-Line Base Assualt is the fifth episode aired in the Blue Dragon (anime).
Zola and the team assault the fortress to free the captives from the city. Logi and his shadow Valkyrie defeat Zola and Killer Bat, then they defeat both Jiro and Marumaro. He leaves for an audience with Nene, leaving Ivanov and Gustav in charge. Shu manages to manifest and control the Blue Dragon, defeating the twins in the process. Shu and the rest then receive a mission to escort Legolas to a town.