Hot Rod

Early Life
Hot Rod was a young bot who worked in the Elite Guard during the Great Civil War. He soon got to History of Iacon where he worked alongside Alpha Trion. Alpha Trion started to train Hot Rod as Alpha Trion saw much of Orion Pax in him.

When Hot Rod worked at the library, he saw Alpha Trion meet someone they called Vector Minor. Vector said "The soldier will become Rodimus. A leader". Hot Rod didn't know who they talked about but believed he had to find Rodimus. But in fact, Rodimus was Hot Rod from the future.

Fall of Cybertron
During the fall of Cybertron, the Decepticons attacked the library. Hot Rod wanted to keep fighting, but Alpha Trion made sure he left. This was because Alpha Trion had put the Key to Vector Sigma inside of Hot Rod. Hot Rod didn't know about this as Alpha Trion did so when Hot Rod was offline.

Hot Rod left and kept fighting in the war. He was able to get onto the Ark before it left Cybertron. He then followed the other Autobots from their home.