When Starscream absorbed a portion of the Underbase, Buenos Aires, Argentina, was one of the three cities he chose to destroy. He announced this, of course, out loud, so when he arrived, an army of Autobots and Decepticons led by Fortress Maximus and Soundwave were waiting for him.

While in the city, these Transformers were taken out by Starscream, in the following order:

• The Triple Changers (Octane, Astrotrain, Blitzwing)
• Buzzsaw and Laserbeak
• The Technobots (Scattershot, Strafe, Nosecone, Lightspeed, Afterburner)
• The Terrorcons (Hun-grr, Blot, Sinnertwin, Cutthroat, Rippersnapper}
• Soundwave
• Omega Supreme

Fortress Maximus was damaged, but still operational, due to being partly organic.