Episode Title:
Fierce Attack -The Scorching Messenger-.
Episode Description:
When the fourth original Dragon, dubbed "Ostrum" by the ISDA, suddenly disappears after wreaking havoc, Nozaki informs the ISDA that Ostrum has resonated with someone. When Ostrum later reappears and overpowers the Lindworm Unit, Akira decides to join in the battle to help her comrades. Meanwhile, Jin is taken to Tartarus by Kō Yonamine, but is obstructed by Kazuki upon his arrival. Back at the ISDA base, Nozaki refuses to answer Kitajima's questions, and has the computer drop the container holding the ISDA's original Dragon sample. Ostrum appears in his Communicator form, and asks Nozaki why he decided to side with humans. Back on Tartarus, Gio is able to actualize and then fly off with Jin. At the same time, Ostrum battles Nozaki, who reveals himself to be the third original Dragon, which Kitajima recognizes as "Atrum".
