Well, last time the gang was in whole heap-a trouble: surrounded by Mycenae troops and Ashura in the hands of the enemy. On top of that, the cliffhanger ending was Garadoublas stepping on everybody. How to make it out of this one alive? Well, you don't, really. Not all of you, anyway. The currently present members of the Kurogane Five all bite it one after the other in this episode, and the first casualty is Cross, who uses his Super Alloy ZEEEETTO arms to keep Garadoublas' foot up long enough for Kouji and Tsubasa to escape to the Pilder, which Sensei and Django have flown in. Now it's a laser-eyed robomonster versus a tiny hovercraft, which doesn't go so awesome.Yasu is the second sacrifice, blowing himself up with the Photon Power bomb inside of him in order to distract Garadoublas as the survivors get away in the Pilder.
Everybody regroups overnight: Tsubasa and crew are working out a way to attack the Kedora itself, and Duke Gorgon is looking to trick Zeus into a truce and sucker punch him when he agrees to it. And Zeus is a big, cosmic Good Guy, you know? He's seen countless intergalactic wars, and he knows Duke Gorgon and his buddies were scheming about destroying all the humans a little while ago... but hey, these dudes are probably legit. So Zeus powers down and the obvious takes place: Hades sets ancient Greece on fire and takes off Zeus' arm for good measure. Hades, dammit!
Check this dude! One of the three great gods of the Mycenae! God of the land of the dead! (Poseidon is shown in passing: will we see him, too, before this show is done?) From here on in it's a big old throw-down: Kouji has to save Ashura, hop into a waterlogged Mazinger Z, and both take down Garadoublas and help his new bro Zeus with Hades. Django and Master have to kill and be killed by Duke Gorgon, and Tsubasa and Baron Ashura have to do some crazy time paradox kinda shit.
To get to the Kedora, Ashura has to open a door that their halves, Tristan and Iseult, had sealed away with that whole "buried-alive-together" business you might remember from earlier of the show. They're betraying themselves, Gorgon, and the Mycenae by taking this action, but hey, what are you gonna do? Ashura belongs to Dr. Hell now. (Note that I must use the "them" pronoun for Ashura, despite avoiding them the entire run of the show, because this situation is too weird) This leads to the wonderful situation of Tsubasa gleefully machinegunning a room of monster-insect-machine brains while Ashura weeps on the floor.
Meanwhile, Zeus is being a really good sport about this whole business of getting his ass saved by a puny human. When he sees Mazinger's rocket punch, dude opts to pick up his own hand and baseball pitch it into Hades' flaming maw, screaming ROCKET PUUUUNCH. What a cool guy! You'd definitely want to get a beer with Zeus. Hades is defeated on the spot, and he warns us that soon, very soon, the plot of the classic Mazinger Z vs. The Grand General of Darkness will take place in this very cartoon. Afterwards, the dying Kedora wants to show us one last memory: the death of Dr. Juuzou Kabuto. But it's going to have to wait for next episode, and considering how slow I was to get this done, that next episode post might come sooner than usual!