Transformers: Cybertron

Fleeing their homeworld of Cybertron to escape a looming black hole, Optimus Prime readies his Autobot forces for a journey to Earth. Before they depart, Vector Prime intercepts them with a dire warning-the galaxy faces destruction unless the four Cyber Planet Keys are recovered in time. But Megatron has his own ambitions for the universe. The Autobots set out to locate the keys, venturing to distant planets where other Transformer civilizations thrive, each governed by their own Autobot leaders.