Available on Prime Video
S1, E1: While helping Strongarm to apprehend Sideswipe, Bumblebee gets a vision of Optimus Prime that draws Bumblebee back to Earth with Strongarm and Sideswipe along for the ride. He finds that the Decepticon prison ship Alchemor has crash-landed on Earth and its Decepticon inmates have escaped.
Animation · 14 Mar 2015 · 20 min