Stop Corroder from destroying the construction site of Penitentiary 1331.
XPlode and Rotor, two criminals under Von Nebula's employ, were assigned to steal explosives from Merak 9. Though they met resistance from the Alpha 1 Team, both were able to escape. They later traveled to Lemus 2 to steal more explosives, but were stopped by Alpha 1. XPlode escaped empty-handed, while Rotor was captured.
Corroder attacked the construction site of the prison facility Penitentiary 1331 after the Alpha 1 had created a new security system on the Lemus 2 Explosives Plant and later was attacked by three members of the Alpha 1: Mark Surge, Jimi Stringer and Dunkan Bulk. Corroder attacked Surge with his Razor-Sharp Claws and Bulk was trapped under some girdurs, so they were forced to activate a Hero Cell. William Furno later arrived and did battle with Corroder, gaining the upper hand because he was wearing acid-resistant armor. Eventually, Natalie Breez arrived on a Drop Ship and Furno tricked him into thinking there were 6 more Heroes on Breez's ship. Corroder then fled. Preston Stormer was worried because of how Rotor, XPlode and Corroder attacked.
Von Nebula later revealed to Corroder that Furno had tricked him, but he had been sucessful in his mission. He later sent Meltdown to carry out the rest of his plan.
Meltdown infected Stormer's old friend, Police Chief Drax, with nanobots that caused him to go rogue. Stormer, along with the Alpha 1 rookies, went to visit Drax, who attacked them with his Floater Enforcer Drones. They subdued Drax, but Meltdown arrived, and infected Stormer as well. Upon returning to Hero Factory, Stormer went on a rampage, forcing Furno to fight him while the other members of Alpha 1 searched for a cure. Stormer was stopped, and a cure was made for him.
The Alpha 1 later journeyed to New Stellac City, where Stormer's old team had taken on a huge Drone and Von Ness had left him and the team leader, Thresher. They took on Thunder, Corroder, XPlode and Meltdown, with the Rookie 1. Stormer and Furno eventually destroyed the Black Hole, defeat Von Nebula, and imprison him in the Black Hole Orb Staff while the rest of the Alpha 1 and Rookie 1 imprisoned the other 4.
|Missions||Legion of Darkness | Imposters | Guard the Princess | Almaak IV Disappearance | Yequee Particle Removal | Dragons! | Fire Sprite Suppression | Pirates of the Constellations | Battle Against XPlode and Rotor | Lemus 2 plant raid | Battle against Corroder | Stormer's Infection | Von Nebula | Ordeal of Fire | Savage Planet | Catch 'em and Cuff 'em|