Two star-crossed freshmen – a zombie, Zed and a cheerleader, Addison – each outsiders in their unique ways, befriend each other and work together to show their high school and the Seabrook community what they can achieve when they embrace their differences.

Zed and Addison are back at Seabrook High, where, after a groundbreaking semester, they continue to steer both their school and community toward unity. But the arrival of a new group of outsiders – mysterious werewolves – threatens to shake up the newfound peace and causes a rift in Zed and Addison’s budding romance.

Zed and Addison are beginning their final year at Seabrook High in the town that’s become a safe haven for monsters and humans alike. Zed is anticipating an athletic scholarship that will make him the first Zombie to attend college, while Addison is gearing up for Seabrook’s first international cheer-off competition. Then suddenly, extraterrestrial beings appear around Seabrook, provoking something other than friendly competition.

Two warring groups of monsters, Daywalkers and Vampires, inhabit two spectacular new worlds: east and west Rayburn, a world of perpetual day and a world of perpetual night. It's up to Zed and Addison to help these two groups of sworn enemies find peace and common ground before their worlds suffer catastrophic consequences.