In Tyrest, a mechanoid called Hooligan kills the Autobot Chameleon in a gladiatorial game, watched by many aliens. The next day, Ultra Magnus and the Sparklers arrive to investigate. They're about to return to head back to Earth with the Wreckers to face Galvatron when they check the Jekka amphitheatre. There they find many dead Transformers. Suddenly, the group are jumped by the Firecons and an alien named Zabra, who capture them.