Occupation (Awakening)
Maya and Kyouhei go on a mission to rescue Kazuki at Moldova base. At the same time, the Neo UN fleet invades the Alvis base, trying to secure the island by taking control of the red female core, revealed to be a Coagula Type Festum, however it has left its container. Meanwhile, Yoji manages to persuade Mjolnir, the Master Type Festum which has assimilated Akane Makabe, to give the Fafner Mark Sein to Kazuki. Yukie, as well as Col. Dudley Barns, questions Fumihiko and Soushi concerning the whereabouts of the female core, but the latter two are unaware of its current location. While Kyouhei fends off the Festum in the laboratory, Yoji gives Maya the research data of the Fafner Mark Sein.
Aired 10/10/2004EP 14 - Occupation (Awakening)

Fafner
Tatsumiyajima is the central island in the middle of a small cluster of islands, in a sleepy backwater of the Japanese isles. Not much happens there, and the island's young people go to school knowing that their lives are likely to remain peaceful and undisturbed. Or so they have been taught... but the truth is different. The fate of mankind is on the line, and Tatsumiyajima is the last line of defense against a hostile and incomprehensible enemy. At the center of it all, fighting for Humanity's continued existence, is the giant robot Fafner, the dragon that guards this final treasure of mankind.
(Source: Anime News Network)
Note: The last episode aired with a runtime of ~48 minutes as opposed to the standard 24 minute long episode. In the DVD release and subsequent home video releases of the series, the final episode was split into two separate ~24 minute long episodes.