Transformers: Unicron

Transformers: Unicron is a six part bi-weekly crossover mini-series by IDW. It debuted in May of 2018 with issue #0 as part of a Free Comic Book Day promotion. The third part of a loose trilogy that began with 2016's Revolution and continued with 2017's First Strike. The series serves as the grand finale to the 2005 IDW continuity in advance of the 2019 reboot, introducing Unicron as the ultimate threat to the Hasbro Universe.