The Count is looking forward to a visit from his brother and his family, but is shocked to discover that Ivan the Bloodthirsty is now living blood-free and calling himself Harvey. Meanwhile, Vlad meets his weedy 15-year-old cousin Boris, who is about to undergo the "vampire transformation".

Boris and Vlad discover that there may be a cure for vampirism. Jonno and Van Helsing plant clues about the Blood Mirror, which will return the whole family to their mortal state if it is smashed.

Shy, clumsy Boris faces his destiny and becomes a powerful vampire. Despite Vlad's hopes that he won't become evil, the new, stronger Boris uses the Blood Mirror to drain his father and the Count of their powers.