Transformers: Energon

Spark (1x51)

Air date: Dec 17, 2004

Galvatron has grown to enormous portions with the power of Unicron growing in him and is headed in to deep space. Shadowing him is a host of Autobots, included Optimus Prime. No one can quite figure out his destination and Optimus sees this as his final opportunity to take down Galvatron once and for all.