Mikey, Christopher, and Nene head to the actual Pandemonia to defeat Bagramon and Axeknightmon. Axeknightmon takes advantage of the distraction. Deckerdramon reveals Christopher's past to Mikey and Nene. Kaoru lends her power to , the one who called her, and he saves them both, and asks , the ghost, to forgive Airu. Mervamon and Sparrowmon are DigiFused by Nene into JetMervamon to destroy GrandisKuwagamon.
Sparrowmon informs the Fusion Fighters that a barrier has prevented her from reaching the top of the tower while finding Bright Land's Digimon that was pinned down to the ground by big spikes. They are saved by , the creature they rescued earlier, who claims Mikey as his. However, they quickly discover that the Bagra Army is attacking this Zone as well. Darkest Axeknightmon is confronted by Shoutmon ×7. In the process, Megadarkness Bagramon kills Shoutmon.
Lord Bagra freezes everything near his extended arm. Meanwhile, a reformed Axeknightmon learns of Apollomon's death. Inside, the Fusion Fighters discover the legendary , powerful artifacts which they use to fend off a fresh attack from Neptunemon's forces. An infuriated Dorbickmon DigiFuses all his minions to assume his winged Darkness Mode Two form to pursue the Fusion Fighters. Dorbickmon pursues a deserter named Dracomon. Airu remembers this started when something got caught in her trap, and they go to where it is.
With Shoutmon ×5 unable to fight NeoMyotismon, Christopher has MetalGreymon take over the fight. At the same time, Axeknightmon intends not to keep his word to Mikey to spare all his friends. With some help from Lilymon and Dracomon, Mikey manages to get Christopher away from Dorbickmon's attack. Christopher has Cyberdramon and Golemon mortally wound Deckerdramon before Mikey intervenes. Apollomon Whispered believes the Fusion Fighters, Axeknightmon, and Ewan died in the Digital Underworld.
This allows the Fusion Fighters to escape. NeoMyotismon was about to absorb Shoutmon ×5 when he is spooked by Lopmon making himself glow white. Their investigation leads them to an abandoned power plant, where a phone rings and Kaoru hears a voice calling for help in the other side. Dorulumon is forced to apologize to Luca by the Fusion Fighters. However, OmniShoutmon and ZeekGreymon are still at a disadvantage as NeoMyotismon attempts to destroy them before they can damage him from the inside instead. Axemon is crushed under the crumbling black castle. After Nene gains Intel from a Crabmon and Betamon in the guise of an alligator, Mikey formulates a rescue plan revolving on Dracomon to Christopher's dismay.
Upon defeating the Andromon, the Fusion Fighters realize their opponents are only puppet replicas as they disable Whamon's teleporter device and learn it is actually an airship. Bagramon turns out to be an illusion with Axeknightmon dealing with them. Mikey comes to his senses after all the Fusion Fighters escape the Digital Underworld. Though Evilbeast Laylamon's body is destroyed, her core digital data endures. As Tactimon makes a personal appearance, Blue Flare and Midnight team up to wring information out of the Zone's defender,. .
After breaking free from the hypnosis, the enraged Shoutmon Digivolves into OmniShoutmon and battles against Olegmon before the Olegmon's crew grabs Ballistamon. Followed by and , Mikey rushes to find the source of the voice, discovering a small digital creature and a red before all three are transported to the. Christopher and MetalGreymon reach Gravimon. Lord Bagra reveals the meaning behind D5. Axeknightmon utilizes the Dark Stone to take away Shoutmon's soul, which is his DigiCore. Separated from the others, Mikey befriends the wandering researcher and returns in time to save his friends.
Earth-god General of the Canyon, The Devil's Invitation! Airu promises to not come around again, and the Hunters leave. Standing tough, Christopher's pride and refusal to back down enables him to Digivolve MetalGreymon into ZekeGreymon who manages to wound Dorbickmon fatally. The actions of the Fusion Fighters are observed by Cyber Land's Dark General. Hi-VisionMonitamon is sent to investigate Gravimon's castle. The Fusion Fighters find Lunamon, Spadamon, and Coronamon hypnotized as the Dark General's grunts. Seeing the monstrous threat Evilbeast Laylamon poses as she creates a black hole, Beelzemon and Mervamon hold her at bay. One of the resident Digimon reveals that only the last Dark General named Apollomon can remove them.