Vampires gather at the castle to select a new Grand High Vampire, but when the first candidates crumble to dust, thoughts turn to an ancient prophecy stating that when the bloodlines weaken, only the Chosen One can wear the crown.

In the third season premiere, Ingrid finds herself on the run from slayers. With his powers as the Chosen One increasing, Vlad has visions of his sister's plight and decides to help her and bring her to their new home.

Vlad invites Erin to stay at the school, unaware that she is an undercover slayer out to avenge her brother. When Bertrand arrives, Vlad must prove he is the Chosen One by opening an ancient book that will give him power over all vampires.