Soukyuu no Fafner: Dead Aggressor

Synopsis

he team arrives on the apparently uninhabited island, and various units set out to explore it. Maya is summoned to treat people who were wounded in a submarine hangar. Meanwhile, some others find a red male core inside an abandoned command center, who surrounds the island with a horde of Festums. Kyouhei Mizoguchi finds Maya, who is still in the hangar, however he is forced by Yukie Kariya to activate the self-destruction sequence. Soushi allows Koyo to rescue Maya and Kyouhei underground into the ocean, while Kazuki and Sakura help fight off the Festums on the surface.

(Source:Wikipedia)