The episode begins in Digald's capital, with Jiin giving Souta and Felme a new task: to hunt down Ra Kan. Despite this being promised to Zairin, it is given to them, as Zairin needs time to grow accustomed to the newly-developed Bio Volcano. The announcement shocks the two of them, and they are brought to see the Volcano in action. Souta comments at its strength, but Felme simply calls it dangerous. Inside, Zairin struggles to maintain consciousness, as piloting the Zoid is shown to be very, very taxing on the otherwise stand-out pilot. He sees Jiin and dismounts, agreeing that Ra Kan must be defeated (personally acknowledging only Ruuji as his adversary), and is thus unopposed to the mission being taken away from him. Instead, he decides to take the Volcano out for an actual battle, so as