Metal-18
(Sequel of "Transformers Prime: Continued War")
Megatron has fallen at the hands of the Autobot's scout, Bumblebee, and a grief-stricken Skyblade, now the new leader of the Decepticons, plans on avenging the former warlord's death, which is easier said than done.
Unexpected events will occur, Skyblade's newfound leadership will be tested, and a big catastrophe calls the entirety of Cybertron to unite when an old foe arrives to give Decepticons, Autobots, and others a fight for their lives.