Grimlock acquires uncontrollable Super Speed, which proves to be a problem when the Autobots have to deal with a revenge-minded Simacore and his army of Mini-Con clones.
Bumblebee is summoned to save Earth from a new faction of Decepticons and assembles a rogue team of young Autobots that includes a rebel bad boy bot, an elite guard cadet, a bombastic Dinobot and hyperactive Mini-Con to capture their new enemies.
Each new bot is a fully capable action hero but inexperienced in working together in a team, forcing Bumblebee to become both squad leader and coach