THE ROAD TO "CHAOS" ENDS HERE! With his army assembled, Galvatron is ready to take the Heart of Darkness back to Cybertron. But first, he must now face down the ultimate threat, a force of unimaginable power and overwhelming darkness. Will Galvatron stand strong or will he bend to the will of inescapable evil? HoD leads directly into "CHAOS"-the first-ever TRANSFORMERS event book from IDW!