Dez anos após ser transformada em vampiro, Eleanor e o pai Mark regressam a casa em Nova Iorque.

Mark segue uma pista que pode ajudá-lo a descobrir uma cura; Eleanor sai às escondidas para ver Isaiah.

Após perceber que Naomi é uma detetive de homicídios, Mark apressa-se a esconder todas as provas.

Mark recorre à ajuda de Zeke; Claire enfrenta um obstáculo; Noemi descobre uma verdade devastadora.

Mark, Naomi e Ellie planeiam celebrar o aniversário de Isaiah; Claire e Matthew criam laços afetivos.

The mystery of Eleanor's origin story as a vampire is revealed.

Mark goes on a date with Naomi, but Eleanor realizes his motives might not be as sincere as they seem. Naomi and her partner, Ben, close in on their suspect, Claire, who has found a terrifying new way to advance her research.

Desperate for help, Mark turns to his faith for guidance, but Eleanor decides to help him instead, risking her life. Naomi is visited at work by a formidable new Interpol agent and Isaiah gets heartbreaking news.

Mark and Eleanor turn to Claire and Peter for help, but soon realize they may have a plan of their own. Naomi and her new partner, Debra, make strides in their case, and Naomi uncovers a huge secret.