Resumen:
On Seibertron, once again at peace thanks to Vector Sigma, a new
compound has been created called Seibertonuron which is many times
stronger than Seibertonium. The Destron cassettes find out about
it and Soundblaster reports to Galvatron, telling him that the new
compound allow him to defeat the Cybertrons. Meanwhile, back on
Earth, the Headmasters are working out to keep up their conditioning.
Galvatron sends the Predacons to retrieve the compound while the
rest of the Destrons head to their new base. The Destron Headmasters
and Sixshot meet with the shadowy Scorponok to discuss their next
moves while the Cybertron Headmasters arrive at the Destron base.
The Combaticons, Stunticons and Destron Headmasters then arrive
on Seibertron with Galvatron and wreck havoc on the planet. Fortress
and the Headmasters then head to Seibertron with Rodimus, Cha,
Blurr and Arcee. They manage to drive back the Destrons - Guardian
beating Bruticus, Superion beating the Stunticons, and the Cybertron
Headmasters taking out the Destrons - but Galvatron incurs major
damage to Rodimus. Scorponok, fearful that Galvatron will be able
to gain the new compound and become too powerful, orders his Headmasters
to plant some bombs to blow up Seibertron.