Following their ordeal at the hot springs, Viral appears before the Gurren Brigade to challenge Kamina and in the midst of their fight more details of the Beastman Empire are revealed. Just when things couldn’t get more out of hand, one of the Four Divine Generals named Thymilph, arrives to support in a massive mobile Gunmen fortress, the Dai-Ganzan. Even the Gurren-Lagann may not stand a chance against this.