After surviving the battle and crash of the Mad? Train, Kouga awakens to find Sigma equally alive and Gyanon's corpse is intact. Using Gyanon's corpse, Sigma regenerates his cut-off hand and reveals that he has a back up plan that involves Kouga. As the other Makai Knights deal with the Horrors manifested as the result of the opened portal the Mad? Train created, Rei and Reo arrive to the site of the crash where they find Kouga being assimilated into Gyanon with their attempts to get him out failing before Sigma takes the Horror away. When Rekka arrives and her attempt to reach Kouga fails, she brings in Kaoru to aid them. Jabi soon joins the group and six head to Amber Rock Valley where Sigma is beginning the ritual.