Grimlock discovers another Dinobot fugitive with whom he sympathizes. He helps them flee, but it does not take long to destroy everything and terrorize the humans. Our heroes will have to join forces to stop it. Denny redecorates a motor home and Russell is afraid of what his father made.
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