Forty years after the Great War on Earth, the Autobots and Decepticons are no more and Optimus Prime and Megatron are relics of the past. Cybertron is at last at peace, ruled by the triumvirate of Starscream, Rodimus Prime, and the Mistress of Flame. However, the Enigma of Combination, an ancient artifact of Primus, has triggered new conflict through the creation of huge, dangerous Combiners, and now Cybertron's fragile peace is in danger of collapse.

In the aftermath of the Titans' conflict that concluded into Optimus Prime's death, the rest of the Transformers must stand together in order to stop Megatronus from wiping out their species forever. During their search for the Requiem Blaster, more mysteries about Cybertron’s past will be uncovered, and a new Prime will be chosen.

After the Combiner Wars ended, Cybertron started to be rebuilt. However, an undead Starscream has been reincarnated as Trypticon, wreaking havoc around him. To combat this menace, Windblade gathers up a ragtag team of Transformers, including Optimus Prime and Megatron, to resurrect an ancient ally. And while some may be forever changed by the events, others may not emerge with their sparks intact.

Several decades after the Great War between the Autobots and the Decepticons on Earth, the two factions have disbanded and a three member ruling council rules in place of the absent leaders Optimus Prime and Megatron. An uneasy peace has been created on Cybertron, but the rise of the Combiners threatens to bring it to an end.