A franchise, beginning in 2002 and ending in 2003, that saw the introduction of the Mini-cons into the Transformers lore.
So basically, Transformers meets Pokemon. The Autobot gotta catch all dem Mini-cons before the Decepticons do.
Eventually all the Transformers have to team up and kill
Unicron, but not before Megatron (at that point
Galvatron) and
Starscream get killed.