rodimus prime is the youngest and possibly strongest prime ever. He used to be a young foolish autobot named hotrod that got optimus prime killed by megatron. after
prime's death he passed the autobot matrix of leadership to
ultra magnus who then lost it to
galvatron. after ultra magnus was blown to peices the autobots seemed to have no chance at destroying unicron or the decepticons but hotrod led the autobots through unicrons eye and fought galvatron 1 on 1. at first galvatron was winning but rodimus beat him by taking the matrix and opening its power becoming rodimus prime, defeating, galvatron, destroying unicron, and proving that he had the touch.