When new Decepticons appear, Optimus Prime summons Bumblebee and gives him the task of saving Earth. To help him, the veteran Autobot assembles a rogue team of young bots to capture the new enemies. The new Autobot recruits include a rebel "bad boy," an elite guard cadet, a bombastic dinobot and a hyperactive mini-con. The recruits provide a challenge for Bumblebee because, while each is a fully capable hero, they are inexperienced when it comes to working as a team. So Bumblebee has to learn how to balance his role as a leader of the new squad with his job of fighting evil forces as he works to complete the mission.