After he moves to Scotland with his parents, only child Tony (Jonathan Lipnicki) struggles to make friends at his new school. But he is bullied and picked on by the other boys, and has little hope of overcoming his miserable new life. Then he meets Rudolph (Rollo Weeks), a kid vampire with whom Tony becomes very close. But, when Rudolph's life and the future of the vampire race are threatened by a ruthless vampire hunter, Tony must find the courage to save his best friend.