Transformers Prime: Ultimate Autobots

They've come to Earth to protect humanity from the treacherous Decepticons. Led by the legendary Optimus Prime, they are the lovable scout Bumblebee, the curmudgeon medic Ratchet, the battle-tested giant Bulkhead and the ever-reliable warrior Arcee. They are the heroic Autobots! And together, with their human partners Jack, Miko and Raf, they will valiantly fight Megatron and his Decepticon army until the Earth is once again safe!