Falling in love is tricky for teens Juliette and Calliope: One's a vampire, the other's a vampire hunter — and both are ready to make their first kill.

They're the first generation of superheroes. But as they pass the torch to their children, tensions are rising — and the old rules no longer apply.

On the run in the year 1987, Bumblebee finds refuge in a junkyard in a small Californian beach town. Charlie, on the cusp of turning 18 and trying to find her place in the world, discovers Bumblebee, battle-scarred and broken. When Charlie revives him, she quickly learns this is no ordinary yellow VW bug.

Set amidst a wave of violent animal attacks sweeping across the planet, a young renegade scientist is thrust into a race to unlock the mystery behind this pandemic before time runs out for animals and humans alike.