When a new army of Decepticons appear, Bumblebee must lead a new team of Autobots to Earth against their eternal foes.

A Decepticon prison ship crashes on Earth and Optimus Prime summons Bumblebee to lead a ragtag team of Autobots - including a bad-boy rebel type, a by-the-book Elite Guard cadet, a loudmouth Dinobot and a hyperactive Mini-con. Their mission: capture an all new batch of escaped Decepticon villains and save humankind.