Stuck in a cosmic "time out" with the Combaticons, Starscream decides to book it, declaring the Combaticons incompetent. Unphased, Onslaught has developed a plan of revenge; Blast Off is towing their asteroid to Cybertron. The Combaticons' arrival on Cybertron interrupts a little target practice Shockwave is holding for the Sentinel drones. The Combaticons merge into Bruticus, decimate the Sentinels, and launch gun-mode Shockwave into deep space. Onslaught declares that Operation: Revenge has begun.