Resumen:
The Decepticon jets badly damage Optimus Prime in an attack on a power
plant. A group of Autobots must go to Wheeljack's lab on Cybertron to obtain a
part needed to repair Optimus. The Decepticons attack while the Autobots are
thus weakened, but Prime is repaired at the last minute and answers Megatron's
challenge for a one-on-one combat. The 'cons are defeated and retreat.