The Autobots, led by Optimus Prime, are on the brink of defeat in the Great Cybertronian War. To counter this, Optimus sends a young scout, B-127, to Earth to establish a new base of operations.

Bumblebee
A lone Autobot, Bumblebee, takes shelter in a California beach town junkyard in 1987, only to discover an unlikely friendship with Charlie Watson, an 18-year-old struggling to find her place in the world.