Optimus Prime and the Autobots take on their biggest challenge yet. When a new threat capable of destroying the entire planet emerges, they must team up with a powerful faction of Transformers known as the Maximals to save Earth.
Mirage, Arcee, Wheeljack, Optimus Prime, and Bumblebee are the Autobots stranded on Earth along with a few other bots.
Cheetor, Optimus Primal and Rhinox are the Maximals.
Noah is their human ally who is Mirage's partner.