Having seen off the Destrons previously, Star Saber's group of Cybertrons have still remained on Micro and contact Blacker, who is still on Earth. He tells them that apart from a short skirmish with the Dinoforce nothing much has happened recently, and finds it odd that Leozack's team haven't been around lately. Star Saber is worried by this as Hellbat was on Micro, so the other Breastforce may be near too.



And most of the Destrons have indeed landed on Micro. Inside the Thunder Arrow, Killbison is busy throwing knives at a picture of Star Saber and moaning about Hellbat. Everyone hates Hellbat and how they are made to follow his orders whilst putting their own necks on the line with little reward, and that getting rid of him could be a great idea. Hellbat then happens to walk into the room, and says he has some good info.



But they aren't interested in that, and as Killbison grabs him, Leozack mentions that he heard Hellbat went out on his own recently and used Black Shadow and Blue Bacchus to attack an energy plant. Hellbat tries to cover-up, saying he wanted to gather energy for use on their next operation. Their Emperor only gives them a limited amount of energy for each mission they go on, but he intended to get them more to use for themselves.



Pulling Leozack aside, Hellbat says that if they can get get a secret supply of energy, they can do as they please, and Leozack can finally overthrow that wretched Deszaras. Leozack begins to think about how great become the Emperor of Destruction would be, whilst Hellbat begins to tell the others about their next plan: to attack Planet Micro's Satellite Penitentiary. The prison moon is a place with a lot of lava, and the criminals are forced into working to create energy with is used on Micro. This prison has a Breastforce member they intend to set free: Guyhawk.



Later on, some staff see a shuttle heading towards the prison, but it is having engine trouble. The shuttle is controlled by the Breastforce, who pretend that the shuttle is damaged and send out a mayday call, so the prison staff let them land. But they crash the ship so the explosion it creates separates one area of the prison from the other main section, and the Breastforce start an all out assault to find their friend.



Word gets out to Micro that there is a Destron attack happening on the prison moon, and Star Saber somehow knows that the Destrons must have gone there to bust Guyhawk out of jail. So he heads off with Galaxy Shuttle, Piupou and Fire. Before he leaves he tells Holi to go and find Greatshot, as he knows the layout of the prison well. He doesn't let Jean go because he's got school work to do. Sucks to be Jean.



Meanwhile the Destrons invade the prison and make mincemeat of all the guards, who all get killed horribly such as being shot to pieces, exploded to pieces and ripped to pieces. Several guards go in to move Guyhawk to a different cell, but he tells them that the Destrons must be here. He then kills them all with his hidden wrist blade, moving at incredibly fast speeds, before leaving his cell.



The guards are still being terribly obliterated as Star Saber arrives on the moon. He goes into the prison complex with Piupou and Fire, leaving Galaxy Shuttle behind just in case they need to depart quickly. Back inside Hellbat sees the Cybertrons and tells Leozack that he'll go and find Guyhawk whilst they deal with the Cybertrons.



The Destrons run in front of the incoming Cybertrons and Leozack gets Killbison to help him fight Star Saber. Jallguar and Drillhorn have a firefight against Fire and Piupou.



Elsewhere in the prison Hellbat takes down some guards and tries to find the switches to open the doors on all of the cells. He finds them and opens up every cell, releasing all of the captured Destrons. He tells them to go outside to fight the Cybertrons. Hellbat then decides that he must find Guyhawk, but is concerned that if he finds him his place in the team will be...before he can finish that thought Guyhawk appears behind him. Hellbat welcomes him with open arms. Guyhawk isn't interested in that though and demands to be given some energy so he can fight.



Star Saber sees off Leozack and Killbison, but then is told by Fire and Piupou the rather bad news that all of the prisoners have escaped and have found weapons. And to make things worse they're heading straight towards them. As Star Saber wonders what to do now, Holi has found Greatshot and that the two of them are already on the moon. They head through an underground passage, going towards the energy room of the prison. Greatshot reckons that Guyhawk will go there before leaving the moon, so he can recharge.



The two Destrons are already at the energy room though and Hellbat is busy charging up Guyhawk and his Breast animal: Hawkbreast. Hellbat tries cleaning some spots of dirt on him, but Guyhawk quickly stops him from doing that and warns that if he wants to fight, he can bring it on. Greatshot then appears, and Guyhawk welcomes him.



However, Guyhawk finds out that Greatshot has joined the Cybertrons. Greatshot asks if Guyhawk will join with him, but he just says he knew he'd have to find out which of them was stronger one day. Hellbat runs off, as Guyhawk and Greatshot start shooting at each other. Outside, the Cybertrons have been pushed back and cannot make it back in. The concentrated fire from the Destrons means that they can't get through.



Leozack and the others are quite happy with the performance of their new allies, but then some lava starts to shoot up and engulfs part of the complex. Hellbat arrives with a burnt backside, as he tells the others that Guyhawk is still inside and is fighting Greatshot.



Back at the battle at the energy room, the two robots are fighting on a bridge above a pit of lava. Greatshot is knocked back slightly when some lava shoots up. Guyhawk uses this to his advantage and uses his ice needle projectile attack to send his opponent off the bridge.



Greatshot manages to stay alive by using a grappling hook. Guyhawk is about to finish him off when some lave shoots up right next to him. He decides that he'd rather live and that he needs to get out of here, so he transforms into his jet mode and flies off.



Holi is left alone to try and pull Greatshot up. Outside, as more and more lava threatens to destroy the entire complex, the recently freed Destrons lay down their weapons and run towards Star Saber. He tells them that they can all get out in Galaxy Shuttle, so they start to board him.



The Breastforce wonder if they should go with the Cybertrons, but know that they'd just be captured. Hellbat is about to sneak off, but Leozack calls him out and reminds him that only the two of them can fly, so it is their job to get everyone out. They transform and help Jallguar, Killbison and Drillhorn to escape.



Holi's rescue operation suddenly goes all wrong when he falls over. Both he and Greatshot are heading towards the lava pit, when the timely arrival of Star Saber and the V-Star saves them both. As the Cybertrons escape, the entire complex is destroyed by the lava. The Cybertrons head back to the other still floating part of the prison and drop everyone off. Fight on, Cybertrons!