G.I. Joe vs. the Transformers: Black Horizon

GI Joe and the Autobots face ancient evils from below the earth and beyond the stars.

G.I. Joe vs the Transformers: Black Horizon #1

Black Horizon issues:
#1 | #2

Black Horizon is the fourth GI Joe/Transformers crossover miniseries published by Devil's Due Publishing. It was published as two double-sized issues.

The book is in continuity with the previous three minis. It focuses on later characters and concepts from both franchises, with more obscure (and stereotypically less popular) groups such as Cobra-La and the Pretenders serving prominent roles. Much of the series is flagrantly over-the-top in concept, and despite its world-shaking premises, the book does not seem to take itself overly seriously.

From Teletraan I: The Transformers Wiki, a Wikia wiki.