Years after an alien invasion, three heroes decide to time travel to save the survivors but they don't know that the Sentinel is waiting for them.

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.

Balthazar Blake is a master sorcerer in modern-day Manhattan trying to defend the city from his arch-nemesis, Maxim Horvath. Balthazar can't do it alone, so he recruits Dave Stutler, a seemingly average guy who demonstrates hidden potential, as his reluctant protégé. The sorcerer gives his unwilling accomplice a crash course in the art and science of magic, and together, these unlikely partners work to stop the forces of darkness.