A new group of humans, led by Sean Yeager along with his daughter, Tessa Yeager, and her boyfriend Shane Dyson, help Optimus Prime and the Autobots rise up to meet their most fearsome challenge yet. A worldwide war of good versus evil.

Tessa finds out that her dad brought home an old vintage truck, which turns out to be Optimus Prime, who is hiding from the Transformer assassin and bounty hunter named Lockdown and the Transformer-hating human government called "Cemetery Wind," led by Harold Attinger.

Tessa: What is that, an old truck you brought, Dad?