In the heart of Transylvania, estranged twins Caroline and Cody reunite under inauspicious conditions at an ancestral home where their hosts disclose the secret behind their family's lineage as Sentinels dating back to Abraham Van Helsing.
Ancient texts reveal to Abe and Izabela important information relating to their current predicament. Caroline and Cody embark on a risky mission, but time is of the essence, as the demon-witch, Elizabeth Bathory, is regaining her strength.