As commander of AUTOBOT City on Earth, ULTRA MAGNUS commands the most powerful forces ever assembled, of which he is among the greatest. He was given the honor of City Commander by OPTIMUS PRIME because of his superior intelligence, and incredible might as a warrior. Since taking command he has defended the city against dozens of attacks by DECEPTICONS led by the crafty SKYWARP. For his part, SKYWARP is determined to breach the city's defenses and destroy ULTRA MAGNUS in order to prove himself to MEGATRON.