Transformers: Robot Masters

(Esta sinopse está em inglês. Ajude a comunidade traduzindo!)

---

In 2004, Optimus Prime is alerted to a disturbance at the gates of Autobot City; a force of Decepticons led by a vicious new enemy, a Tyrannosaurus rex calling himself Megatron!! Autobots and Decepticons from across the eras have converged on this time to clash over the newly-discovered energy source solitarium!