As the Commander of the Autobot military, Prime organizes the evacuation of Cybertron and the relocation of the planet's inhabitants to Earth. Although a stern and methodical leader, he is a compassionate robot who deeply cares for each of his subordinates. At first, Prime is firmly opposed to interacting with the natives of the worlds the Autobots visit, but soon comes to realize the benefits of the allies the Autobots gain.

Prime transforms into a fire engine, and can convert into a secondary flight mode, or merge with his trailer into Super Mode. Later using the Matrix of Leadership replacing the role of the Spark of Combination, he combines with his fellow Autobot Leobreaker to form Savage Claw Mode (Liger Convoy), and with Wing Saber to from Sonic Wing Mode (High-speed Mobile Supreme Commander (Kosoku Kido Soshireikan) Sonic Convoy) though the Autobots claim when Prime and Leobraker combine for the first time, "I didn't know Autobots could do that".. Whether he or Galvatron are the stronger, or if both are in perfect balance is unknown, as although Prime did ultimately destroy Galvatron in one final blow, it was with Vector Prime's sword, given to him in the last few seconds before they clashed for the last time. His Cyber Key Power makes his cannons more powerful ("Galaxy Cannon: Full Burst!). As Liger Convoy, his Force Chip special attack was Liger Grand Break; as Sonic Convoy, it was Sonic Double Impact or Galaxy Caliber. When he uses Metroplex's axe in Super Mode, he uses Galaxy Giga Crush.

(Source: Wikipedia)