Final episode of the series.
Galvatron and Zarak have the last lines of dialogue in the series
Goldbug and his own previous incarnation, Bumblebee, are both seen celebrating at the end.
This series final finally resolve the energy crisis, way back to the start of the shows run.
To the very end, Optimus Prime is the only character to appear in both series opener and closer. With the exception of Spike, and the animation error of Bumblebee's cameo.